Movement of the upper limb away from the trunk is called Abduction.
The correct option is D .
In general ,Abduction is an important movement in many activities, including sports and everyday movements such as reaching for objects on a high shelf. It is also important for maintaining proper posture and balance. Abduction is the movement of a limb or other body part away from the midline of the body or away from another body part.
In the case of the upper limb, abduction refers to the movement of the arm away from the body, typically in a horizontal plane. For example, bringing the arm back down to the side of the body after abduction is adduction.
Hence D is the correct option
To learn more about Abduction , here
brainly.com/question/17078070
#SPJ4
If a ray-finned fish is to both hover (remain stationary) in the water column and ventilate its gills effectively, then what other structure besides its swim bladder will it use?
A) its pectoral fins
B) its lateral line system
C) its caudal (tail) fin
D) its operculum
If a ray-finned fish is to both hover (remain stationary) in the water column and ventilate its gills effectively, then what other structure besides its swim bladder will it use is D) its operculum.
The operculum is a bony structure that covers and protects the gills of ray-finned fish. It allows for effective ventilation of the gills while the fish hovers in the water column. The swim bladder helps with buoyancy control but does not directly aid in gill ventilation. The pectoral fins and caudal fin aid in movement and maneuverability, but not specifically in hovering or gill ventilation. The lateral line system helps the fish sense changes in water pressure and movement, but is not directly involved in either hovering or gill ventilation.
Learn More about operculum here :-
https://brainly.com/question/19171412
#SPJ11
A ray-finned fish along with the swim bladder use its operculum to cover and protect its gills. Hence the correct answer is option d.
The operculum is a bony structure that covers and protects the gills of a fish which enables efficient ventilation. When a fish is stationary or hovering, it needs to ventilate its gills to obtain oxygen from the water. The operculum helps to create a constant flow of water over the gills, allowing for efficient gas exchange. It will use its pectoral fins to help maintain a stationary position in the water column, also known as hovering. This along with the swim bladder allows the fish to control its buoyancy and position effectively. The lateral line system, caudal (tail) fin, and other structures play important roles in the fish's movement and navigation but are not primarily used for hovering and ventilating gills.So the correct answer is option d.
know more about operculum here : https://brainly.com/question/14385921
#SPJ11
herpes simplex virus can only be spread by symptomatic patients. group of answer choices true false
The statement "herpes simplex virus can only be spread by symptomatic patients" is false.
Herpes simplex virus can be spread by both symptomatic and asymptomatic patients. Asymptomatic patients may not show visible symptoms, but they can still transmit the virus to others through viral shedding.
HSV is a highly contagious virus that can be transmitted through direct contact with infected body fluids, such as saliva, genital secretions, or lesions caused by the virus.
The virus can be passed even during times when there are no visible symptoms, which is why it is essential to practice safe sex and take appropriate precautions to prevent the spread of the virus.
It is also important to note that there are two types of herpes simplex virus: HSV-1 and HSV-2. While HSV-1 is typically associated with oral herpes (cold sores) and HSV-2 is associated with genital herpes, both types can infect either location.
Additionally, HSV-1 can be spread to the genitals through oral sex, and HSV-2 can be spread to the mouth through genital-to-oral contact.
To know more about "Highly contagious virus" refer here:
https://brainly.com/question/780864#
#SPJ11
he suffix in the term homeostasis means: similar. process. stand still. pertaining to.
The Greek term for stoppage or standing, from which the suffix -stasis derives, describes how something in stasis stands still and is in an equilibrium state. Homeostasis does not, in fact, maintain a state of absolute equilibrium within our bodies, although it does try to do so within a limited range.
The term "homeostasis," which derives from the Greek meanings for "same" and "steady," refers to any method that living organisms employ to actively preserve the comparatively stable conditions required for survival. Walter Cannon, a doctor, first used the word in 1930. Under certain constraints, homeostasis refers to the state of optimal functioning of organisms, which includes factors like fluid balance and body temperature.
To know more about Homeostasis, click here:
https://brainly.com/question/3888340
#SPJ4
he suffix in the term homeostasis means: similar. process. stand still. pertaining to ______.
4. How many glands are part of the endocrine system?
A. 8
B. 2
C. 4
D. 6
Answer: 7.
Explanation: The endocrine system is made up of seven different glands that make chemicals called hormones.
Answer:8
Explanation There are 8 glands in the endocrine system
Write a hypothesis about the effect of the red light on the
population. Use the "if.
.then . .. because . . ." format,
and be sure to answer the lesson question: "How does
natural selection change the phenotypes within a
population over time?"
When a phenotype generated by particular alleles helps animals survive and reproduce more than their contemporaries, natural selection may boost the number of the advantageous alleles from a single generation to the next.
Natural selection alters phenotypic in what ways?The effect of natural selection upon single-gene traits can modify allele frequencies and, as a result, phenotypic frequencies. Natural selection on polygenic characteristics can have three effects on phenotypic distributions: directional selection, stabilisation selection, and disruptive selection.
How does the process of natural selection affect population growth over time?Natural selection is an evolutionary mechanism. Organisms that are better adapted to their surroundings are able to prosper and pass on the DNA that helped them thrive. Species change and split as a result of this process.
To know more about alleles visit:
https://brainly.com/question/7602134
#SPJ1
an inappropriately managed injury to the periosteum may develop into
An inappropriately managed injury to the periosteum may develop into further damage, bone callus, delayed healing, or even chronic pain.
The periosteum is a thin layer of connective tissue that covers the bones and plays a crucial role in bone healing and repair. If an injury to the periosteum is not properly diagnosed and treated, it can lead to complications and hinder the body's natural healing process. It is important to seek medical attention for any injury, especially those involving the periosteum, to ensure appropriate management and prevent further damage.
Injury to the periosteum can occur due to trauma, such as a fracture or dislocation, or due to a chronic condition such as osteomyelitis. If the injury is not appropriately managed, it can lead to the formation of a bone callus, which is a mass of bony tissue that forms at the site of the injury as part of the healing process.
While a bone callus is a normal part of the bone healing process, an inappropriately managed injury can result in the formation of a larger or irregular callus, which can cause pain, stiffness, and a limited range of motion. In severe cases, the callus may need to be surgically removed to restore proper function and movement.
Learn more about periosteum here:
https://brainly.com/question/1408966
#SPJ11
The world is using fossil fuels at an extremely rapid rate. What is the concern about these natural resources?
A.
They will run out because they are renewable.
B.
They will run out because they are non-renewable.
C.
The remaining fossil fuels will rise to the Earth's surface, causing pollution.
D.
They will continue to decrease in quality
this tends to be the longest cytoplasmic projection from a neuron.
The longest cytoplasmic projection from a neuron is the "axon."
The axon is a long, slender cytoplasmic projection that extends from the cell body of a neuron and transmits electrical impulses away from the cell body to other neurons, muscle cells, or glands. The length of an axon can vary widely, ranging from a few micrometers to over a meter in length in some cases.
Axons are specialized for rapid and efficient transmission of nerve impulses, and they are covered by a fatty insulating layer called myelin, which helps to speed up the transmission of impulses. At the end of the axon, specialized structures called synaptic terminals allow the neuron to communicate with other neurons or target cells through the release of neurotransmitters.
Learn more about neuron : https://brainly.com/question/13061744
#SPJ11
in the context of elbow movements, the movement of the forearm to the shoulder by bending the elbow to decrease its angle is known as _____.
In the context of elbow movements, the movement of the forearm to the shoulder by bending the elbow to decrease its angle is known as flexion.
Flexion is a type of movement that occurs in a joint where the angle between two bones decreases. In the case of the elbow joint, flexion is the movement that brings the forearm closer to the shoulder by decreasing the angle between the humerus and the radius/ulna bones of the forearm.
Flexion is an essential movement for everyday activities such as lifting objects and bringing food to one's mouth. It is also a fundamental movement in many sports, including weightlifting, gymnastics, and baseball.
To learn more about flexion the link:
https://brainly.com/question/5858973
#SPJ4
All of the following are biophysical strengths EXCEPT A. good genetic history. B. history free of physical disabilities. C. good physical appearance. D. good vocabulary.
All of the following are biophysical strengths EXCEPT good vocabulary.(D)
Biophysical strengths refer to attributes related to an individual's physical and biological aspects. A. good genetic history, B. history free of physical disabilities, and C. good physical appearance are all biophysical strengths as they involve genetic, physical, and health factors.
On the other hand, D. good vocabulary is not a biophysical strength, as it is a cognitive and linguistic skill that develops through learning and experience, rather than being related to one's physical or biological attributes.(D)
To know more about linguistic skill click on below link:
https://brainly.com/question/31265015#
#SPJ11
Mitochondrion definition
Answer:
an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers (cristae).
Explanation:
what is the name of the process through which microbes change their sutface molecules to avoid destructionby the host's antibodies?
The process through which microbes change their surface molecules to avoid destruction by the host's antibodies is called "antigenic variation."
What is the role of antigenic variation?
The process of antigenic variation allows the microbe to evade recognition by the host's immune system and continue invasion. The specific region of an antibody that binds to an antigen is called the "paratope," while the regions of the antibody that recognize and bind to the antigen are called the "antigen-binding regions."
The name of process through which microbes change their surface molecules to avoid destruction by the host's antibodies is called "antigenic variation." In this process, microbes alter their surface antigens, making it difficult for the host's antibodies, which have antigen-binding regions (paratopes), to recognize and neutralize them. This enables the microbes to continue invading and evading the host's immune system.
To know more about antigenic variation, visit:
https://brainly.com/question/13258669
#SPJ11
20
Question 6
6. A pea plant with yellow seeds (YY) is crossed with a pea plant with
green seeds (yy)., All seeds from the resulting plants are yellow. Yellow is:
a. dominant
Ob. recessive
c. heterozygous
No answer text provided.
5 pts
< Previous
Answer:
A. dominant
Explanation:
a patient has microcytic hypochromic anemia. which of the following pathogenic mechanisms may cause anemia in this patient? (select all that apply.) 1. increased basal metabolic rate 2. decreased erythrocyte life span 3. disturbances of the iron cycle 4. swelling in the tissues 5. failure of mechanisms of compensatory erythropoiesis
The pathogenic mechanisms that may cause anemia in a patient with microcytic hypochromic anemia are: 2. decreased erythrocyte life span, 3. disturbances of the iron cycle, and 5. failure of mechanisms of compensatory erythropoiesis.
Increased basal metabolic rate and swelling in the tissues are not typically associated with microcytic hypochromic anemia.
The mechanisms that may cause anemia in this patient include:
1. Decreased erythrocyte life span: A reduced red blood cell lifespan can lead to anemia, as there are fewer red blood cells available to transport oxygen.
3. Disturbances of the iron cycle: Iron is essential for hemoglobin synthesis, and disruptions in the iron cycle can cause microcytic hypochromic anemia, as the body is unable to produce enough hemoglobin.
5. Failure of mechanisms of compensatory erythropoiesis: If the body is unable to produce new red blood cells at a rate that compensates for their loss or destruction, anemia may occur.
Increased basal metabolic rate (option 1) and swelling in the tissues (option 4) are not directly related to the pathogenic mechanisms of microcytic hypochromic anemia.
To know more about anemia refer here:
https://brainly.com/question/29423004
#SPJ11
population. It also shows the running speed of a new group of
predators that recently moved into the area due to habitat loss.
You have been asked to identify the portion of the rabibit population
that will likely survive to pass on its traits to future generations.
Which portion of the graph will you highlight?
Select one:
O the bottom portion
O
O the far right portion
the far left portion
O the middle portion
The bottom portion of the graph, where the rabbit population reaches its lowest point, is the portion that is most likely to survive and pass on its traits to future generations.
What is the cause of habitual loss?Habitat loss is caused by various human activities such as deforestation, urbanization, industrialization, mining, and agriculture. These activities lead to the destruction, fragmentation, and degradation of natural habitats, making them less suitable for the survival of certain species.
Climate change can also contribute to habitat loss by altering temperature and rainfall patterns, causing some habitats to become unsuitable for certain species.
Find out more on habitual loss here: https://brainly.com/question/30991965
#SPJ1
The greatest biodiversity would be in an ecosystem with the same number of species as other ecosystems but which has
A) more consumers species than producer species.
B) a single dominant species.
C) several dominant species in intense competition with each other.
D) no dominant species.
The greatest biodiversity would be in an ecosystem with the same number of species as other ecosystems but which has no dominant species.(D)
An ecosystem with no dominant species has a more balanced distribution of species, allowing for greater biodiversity. This is because there is no single species outcompeting others for resources, leading to more niche opportunities for various species to coexist.
In contrast, ecosystems with dominant species or intense competition among dominant species tend to suppress the growth and diversity of other species, reducing overall biodiversity. By having no dominant species, the ecosystem can support a wider range of organisms and maintain higher levels of species richness and evenness.(D)
To know more about biodiversity click on below link:
https://brainly.com/question/13073382#
#SPJ11
a scientist is examining a fern and wants to find the archegonia, so she looks for a location containing a
A scientist is examining a fern and wants to find the archegonia, so she looks for a location containing a megagametophyte.
The megagametophyte, also known as the embryo sac, is a female gametophyte that is found within the ovule of flowering plants. It is an essential part of the reproductive process and plays a critical role in the development of the plant embryo.
The megagametophyte is formed through a process of meiosis, which produces four haploid cells, three of which eventually degenerate. The remaining cell divides several times to form a multicellular structure that contains several nuclei but no cell walls, known as the embryo sac.
The number and arrangement of these nuclei varies among different plant species.
The megagametophyte is where the egg cell, which is necessary for sexual reproduction, is located. The egg cell is fertilized by a sperm cell that is delivered through the pollen tube, which grows from the male reproductive structure, the pollen grain.
The resulting fertilized egg then develops into the embryo, which eventually becomes the plant embryo.
To know more about megagametophyte here:
https://brainly.com/question/30674517#
#SPJ11
Note: complete question:
A scientist is examining a fern and wants to find the archegonia, so she looks for a location containing a
megaphyll.
microgametophyte.
microspore.
stomate.
megagametophyte.
megagametophyte
bats are the only mammals to evolve powered flight. they group of answer choices appear in eocene time are small, shrew-like mammals are mostly insectivores all of the above
Bats are the only mammals to evolve powered flight. They d. all of the above.
About 55 million years ago, during the Eocene period, bats first emerged. They are a varied group of mammals, although the majority are little, and some of them resemble shrews. Through the utilisation of sound wave reflection, the bats employ ultrasound to quickly dispatch their prey.
The ultrasonic signal is created by the bats and is reflected off of the prey as it gets closer to the bats' ears. This aids the bat in determining the prey's distance. Bats also mostly consume insects, however some species also consume fruit, nectar, and blood. In addition, powered flight is a remarkable and rare adaptation that has only been acquired by bats, allowing them to fill a range of ecological niches.
Complete Question:
Bats are the only mammals to evolve powered flight. They
a. appear in Eocene time
b. are small, shrew-like mammals
c. are mostly insectivores
d. all of the above
Read more about Bats on:
https://brainly.com/question/29090959
#SPJ4
despite an abundance of environments and resources, why will it be difficult for the human species to recover?
For the biodiversity of the world, human activity poses a serious threat. This is due to the exponential nature of human population expansion, which ensures that it continues to increase at the same rate regardless of population size.
As it gets bigger, this causes the population to grow increasingly quickly.The populations may increase exponentially for a while, but eventually they hit a carrying capacity when the amount of resources available to them becomes a constraint.
But while they create new technology to sustain the continuously expanding population, humans have continued to operate within carrying capacity.
Land-use change: As people develop cities and dig for resources, they risk destroying the natural landscapes that surround them. As a result, fewer habitats and food supplies are available, which is harmful since it drives out existing species.
Runoff and chemical waste disposal are two sources of pollution.
To know more about human activity please check the following link
https://brainly.com/question/9170044
#SPJ4
A cell containing 8 chromatids at metaphase of mitosis would, at its completion, produce two nuclei containing how many chromosomes?
8
16
4
24
A cell containing 8 chromatids at metaphase of mitosis would, at its completion, produce two nuclei contains 8 chromosomes.
During metaphase of mitosis, the chromosomes are aligned at the equator of the cell and each chromosome is composed of two sister chromatids joined at the centromere.
At the completion of mitosis, the cell has divided into two daughter cells, each containing a complete set of chromosomes. In this case, the cell had 8 chromosomes at metaphase, which means that there were 4 pairs of sister chromatids.
During anaphase, each sister chromatid would separate and move to opposite poles of the cell, resulting in 8 individual chromosomes. Therefore, each daughter cell would receive 8 chromosomes, for a total of 16 chromosomes in the two daughter cells.
Learn more about Chromosomes
https://brainly.com/question/30993611
#SPJ4
a difference between a g and an a at a particular nucleotide is an example of a(n) snp. str. microarray. dna transposon. microsatellite.
An illustration of snp is a difference between a g and an a at a specific nucleotide. The correct answer is SNP.
The substitution of a C for a G in the nucleotide sequence AACGAT, which results in the sequence AACCAT, is an illustration of an SNP. The DNA of people might contain numerous SNPs since these varieties happen at a pace of one in each 100-300 nucleotides in the human genome.
A single nucleotide change in a genome is known as an SNP. Likewise, it is a sort of change. Base pair substitution, insertion, deletion, duplication, or variation in DNA is known as a mutation.
The primary distinction between an SNP and a mutation is that a mutation is any change in DNA, from a single to many nucleotide difference, whereas an SNP is a single nucleotide difference in DNA.
To learn more about nucleotides here
https://brainly.com/question/16308848
#SPJ4
active transport uses atp to move components in parallel with their concentration gradient, that is: from a high concentration to a low concentration
Active transport is a biological process that involves the movement of molecules or ions against their concentration gradient, from a region of lower concentration to a region of higher concentration. True .
This requires an input of energy, usually in the form of ATP. This process allows cells to maintain concentration gradients that are necessary for various cellular processes, such as the uptake of nutrients, removal of waste products, and maintenance of ionic balance.
Unlike passive transport, which occurs along the concentration gradient and does not require energy, active transport requires the use of specific transporter proteins that bind to the molecule or ion being transported and use energy to move it across the cell membrane. Active transport is an essential process in many biological systems, including the transport of glucose into cells and the removal of sodium ions from cells.
Learn more about Active transport
https://brainly.com/question/29759743
#SPJ4
Full Question: active transport uses ATP to move components in parallel with their concentration gradient, that is: from a high concentration to a low concentration. True/false
the genomes of many organisms have been sequenced. what benefits or uses could result from this information?
The sequencing of genomes of various organisms has opened up numerous opportunities for research and advancements in fields such as medicine, agriculture, and ecology.
One major benefit is the ability to understand the genetic basis of diseases and develop targeted therapies. For example, the Human Genome Project has led to the discovery of genes associated with various diseases such as cancer and Alzheimer's, which has aided in the development of new treatments and drugs.
Genome sequencing has also contributed to advancements in agriculture, as it allows for the development of crops with improved yield, disease resistance, and nutrient content. Similarly, it has aided in the conservation of endangered species by allowing scientists to study their genetic diversity and develop strategies for their preservation.
In addition to these practical applications, genome sequencing has contributed to our understanding of evolutionary history and relationships between species. It has provided insight into the mechanisms of adaptation and speciation, as well as the evolution of complex traits such as intelligence and behavior.
Overall, genome sequencing has had a significant impact on various fields of research and has the potential for even greater advancements in the future.
For more such questions on genomes
https://brainly.com/question/29598514
#SPJ11
suzanne takes a supplement containing a strain of bacteria known as lactobacillus rhamnosus gg in hopes that it will colonize her large intestine and promote health. this supplement is a(n)
Suzanne takes a supplement containing a strain of bacteria known as Lactobacillus rhamnosus GG in hopes that it will colonize her large intestine and promote health. This supplement is a probiotic.
Probiotics are living microorganisms, such as bacteria or yeast, that are beneficial to human health when consumed in adequate amounts. Lactobacillus rhamnosus GG is a commonly used strain of probiotic bacteria that is believed to help support digestive health and boost the immune system.
When consumed, probiotic supplements can help to introduce beneficial bacteria to the gut microbiome, which is the collection of microorganisms that live in the digestive tract. This can help to improve gut health and potentially prevent or treat certain health conditions, although more research is needed to fully understand the benefits of probiotics.
Learn more about supplements : https://brainly.com/question/1597149
#SPJ11
which of the following mutations would have the greatest affect (deleterious or favorable) on an organism group of answer choices single nucleotide substitution single nucleotide insertion premature stop codon at position 42 of 44. duplication of 12 nucleotides single codon deletion
An organism's single nucleotide insertion would be most affected, either deleteriously or positively, by the following mutations.
In a frameshift transformation, the perusing outline changes because of additions or cancellations of nucleotides. Consequently, the amino acid sequence following the insertion or deletion differs from the sequence of the wild-type polypeptide. Hence, various amino acids in a protein change.
B. nonsense mutations are the kind of mutation that is most likely to have a significant impact on a protein. This is due to the fact that a nonsense mutation causes a premature stop codon, resulting in the protein's incomplete formation and severe effects on its structure and function.
A single nucleotide frameshift mutation is likely to have a significant impact on an organism's phenotype.
To learn more about nucleotides here
https://brainly.com/question/30299889
#SPJ4
Desert plants are characterized by
A. Broad leaves
B. Succulent stems
C. Deciduous leaves
Desert plants are characterized by Succulent stems .
The correct option is B .
Broad leaves are generally not common in desert plants because they lose water through transpiration, which is the process of water loss from plant leaves. Therefore, desert plants have evolved to have small or narrow leaves to minimize water loss. Succulent plants are a good example of this adaptation. Succulents are characterized by their thick, fleshy stems and leaves, which are able to store large amounts of water for long periods of time.
Also, many desert plants have evolved to retain their leaves year-round, instead of shedding them seasonally like many other types of plants. This adaptation helps to conserve water, as shedding leaves is another way of losing water.
Hence , B is the correct option
To learn more about Succulent plants , here
brainly.com/question/15288907
#SPJ4
During a time of famine and starvation a person's basal metabolic rate will ___.
During a time of famine and starvation, a person's basal metabolic rate will decrease.
1. Famine is a period of extreme scarcity of food, leading to starvation for a population.
2. During starvation, the body starts using stored energy reserves (fats, carbohydrates, and proteins) to maintain essential functions.
3. To conserve these energy reserves, the body lowers its basal metabolic rate, which is the rate at which it uses energy at rest.
4. This decrease in basal metabolic rate helps the body to survive long periods of famine and starvation by reducing the overall energy expenditure. Hence a person's basal metabolic rate will decrease During a time of famine.
know more about "basal metabolic rate" here: https://brainly.com/question/18093573
#SPJ11
if a dividing cell needs to move chromosomes to the centrosome/centriole, which motor molecules would be used?
Members of the kinesin family are the motor motes that transport chromosomes to the centrosome/ centriole during cell division.
During spindle assembly, kinesin- 5( also known as Eg5) is pivotal for pushing microtubules in opposing directions and lugging chromosomes towards the centrosome/ centriole. Kinesins are a kind of motor protein that moves along microtubules and obtains energy from ATP hydrolysis. Kinesin- 5, generally known as Eg5, is a kind of kinesin that's involved in centrosome separation during mitotic spindle assembly.
It pulls the chromosomes towards the centrosome/ centriole by moving microtubules in opposing directions. Kinesin- 5 dysfunction or blockage can affect in mitotic crimes and cell death, making it an important target for cancer curatives.
Learn more about chromosomes at
https://brainly.com/question/18286970
#SPJ4
Many exoenzymes from pathogens are virulence factors. 1) True 2) False
True. Exoenzymes from pathogens are virulence factors which are molecules or compounds released by a pathogen that enables it to cause disease.
Exoenzymes, also known as extracellular enzymes, are proteins expressed and secreted by a pathogenic organism. These enzymes allow the organism to move, invade, and damage host cells. Exoenzymes also allow bacteria to break down host components to obtain nutrients, degrade host defenses, and protect the organism from host defenses.
Exoenzymes can cause disruption of the cell membrane and damage to cell organelles, leading to cell death. They can also induce inflammation which can lead to tissue damage. In addition, exoenzymes can inhibit the host’s immune response and interfere with the healing process. Thus, exoenzymes are important virulence factors that enable pathogens to cause disease.
Know more about Exoenzymes here
https://brainly.com/question/14018628#
#SPJ11
the unnatual and human-induced change that destroys the resilience and biological potential of an arid and semi-arid ecosystem, and that has been quite common in the sahel region for the last several decades, is called .
Desertification is the degradation of arid and semi-arid ecosystems due to human-induced changes. It is a serious ecological problem that has been occurring in the Sahel region for the last several decades.
Desertification results in the loss of biodiversity, soil erosion, decreased agricultural productivity, and an overall decrease in the resilience of the ecosystem. Human activities such as overgrazing, deforestation, and unsustainable agricultural practices are the primary causes of desertification.
These activities lead to an increase in soil salinity and a decrease in the water-holding capacity of the soil, both of which reduce the amount of available arable land. Additionally, desertification affects the hydrological cycle, resulting in an increase in the frequency and intensity of droughts. These changes cause significant harm to the local human and animal populations, leading to further degradation of the environment. Ultimately, desertification is a major environmental issue that needs to be addressed in order to protect the Sahel's biodiversity and to ensure a sustainable future for its people.
Know more about Hydrological cycle here.
https://brainly.com/question/13554728#
#SPJ11