Please guys tomorrow I have exams help me
The correct statement from the options about protons, electrons, and neutrons are:
TrueTrueFalseFalseFalseD. None (The idea that matter is 'continuous' was proposed by Aristotle)
D. Democritus
B. Neutron and proton
C. Mass number
What are protons, electrons, and neutrons?Protons, electrons, and neutrons are subatomic particles that make up atoms.
Protons are positively charged particles located in the nucleus (center) of an atom. The number of protons in the nucleus determines the element that the atom represents. For example, all carbon atoms have six protons in their nucleus, while all hydrogen atoms have one proton.
Electrons are negatively charged particles that orbit around the nucleus of an atom. Electrons are much smaller than protons and neutrons and are responsible for the chemical properties of an atom. The number of electrons in an atom is typically equal to the number of protons, ensuring that the atom has no overall electric charge.
Neutrons are neutral particles located in the nucleus of an atom, with a mass similar to that of protons. Neutrons do not carry a charge, but they do affect the stability and mass of an atom. The number of neutrons in an atom can vary, resulting in different isotopes of the same element with different masses.
Learn more about protons, electrons, and neutrons at: https://brainly.com/question/27548669
#SPJ1
Much like auxin in a stem causes it to grow upward, the auxin in which structure makes it grow downward?
Responses
flowers
roots
gametes
leaves
Answer :Roots
Explanation: Gravitropism is based on the redistribution of auxin in the elongation zone of the developing root. If the root is not growing vertically downward, then auxin accumulates in the lower parts of the root, inhibiting cell elongation and causing the root to bend in the direction of gravity.
Starting billions of years ago, algae lowered the. atmosphere. levels in the A. carbon dioxide D. oxygen C. ozone B. methane
Explanation:
ozone probably, I think
in which part of a plant would these cells be found
Answer:
These cells are usually found in all plant roots and mainly involved in providing support to the plants.
Explanation:
Why might it be helpful for an organism to have different types of connective tissue?
The main advantage of having different types of connective tissue is the division of labor work.
Normally the living organism contains a multicellular body, in that they have a different level of organization of cells. A cell that has similar function and structure form tissues to perform a specific activity in the system the body
the group of tissues performs a specific activity for different parts of the body for example circulation in the system, protection against disease, storage of fat, transport of substances, etc. In the body, different systems carry out separate functions simultaneously and independently. a single cell cannot carry out complex functions of organs efficiently.
to learn more about Connective tissue:
https://brainly.com/question/26934388
Fermenter is the heart of fermentation process- explain
In the fermentation process, the fermenter is a container that offers a regulated environment for microorganisms to transform carbohydrates into desired products. It enables process monitoring and control, leading to high yields of high-quality goods.
What other names are given to fermenters?Fermentors, commonly referred to as bioreactors, are sterile, enclosed tanks used for the ideal development of microorganisms. Large-scale cultivation of the microorganisms is possible to develop metabolites with industrial applications.
What components of a fermenter are crucial?One of the fermentor's key components is the aeration system. To maintain optimum aeration and oxygen availability throughout the culture, a good aeration system must be chosen.
To know more about fermentation visit:-
https://brainly.com/question/31310689
#SPJ9
Why might it be helpful for an organism to have different types of connective tissue?
Answer:
a
Explanation:
becusw it ahfhhjddjdudjsjejdjdjdjdhshssjs
A graph of the total number of species found in an area against the percentage of land
under protection would show a/an…
A. exponential correlation.
B. negative correlation.
C. positive correlation.
D. lack of correlation.
The graph of the total number of species found in an area against the percentage of land under protection would show a positive correlation.
What would the graph of the total number of species found in an area against the percentage of land under protection show positive correlation?This is because as the percentage of land under protection increases, it is likely that there would be more resources available for species to thrive and more opportunities for habitat restoration and conservation efforts. Additionally, protected areas often provide important ecosystem services that support biodiversity, such as water filtration, carbon sequestration, and soil conservation.
However, it is important to note that the relationship between protected areas and biodiversity is complex and may depend on a variety of factors, such as the size and location of the protected area, the level of protection and management, and the characteristics of the species and ecosystems in question.
Learn more about positive correlation:https://brainly.com/question/27886995
#SPJ1
Messenger RNA produced during transcription and eukaryotic cells undergoes processing before it exits the nucleus . which of the following is not a part of this mRNA processing ?
a addition of a methylated cap
b removal of introns
c addition of dna primers
d addition of a poly a tail
Answer:
c addition of dna primers is not a part of this mRNA processing.
Messenger RNA produced during transcription and eukaryotic cells undergoes processing before it exits the nucleus while the addition of DNA primer is not a part of this mRNA processing. Therefore, the correct option is C.
A DNA segment is copied into RNA during transcription. Messenger RNA is the term for DNA segments that are translated to RNA molecules that really can code for proteins. Non-coding RNAs are RNA molecules that contain copies of additional DNA segments. Just 1% to 3% of all RNA samples are mRNA.
The act of copying information from a DNA strand into a fresh messenger RNA molecule is called transcription (mRNA). DNA preserves genetic material as a reference or template safely and permanently in the cell nuclei.
Learn more about Transcription, here:
https://brainly.com/question/14136689
#SPJ2
Biology 3.03 Lab: Dichotomous Key 1. I desperately need help.
Create a dichotomous key that identifies the 10 leaves on the Common Leaves sheet. Look closely at those leaf samples and devise a dichotomous key that helps you identify them. Be sure that your dichotomous key contains only pairs of statements about a single characteristic. For example, a pair of statements might be:
A. leaf margin smooth
B. leaf margin toothed
However, you should avoid pairs of statements that do not address the same characteristic. The following pair, for example, would not be very informative in your key:
A. leaf margin smooth
B. leaf type needle-like
As you develop your key, test it out with the 10 leaves provided on the Common Leaves sheet. When you've developed a key that identifies all 10 leaves, type your statements, “go tos,” and identifications, following the format in the example below. The example is based on this lesson’s dichotomous key for birds.
Once you have completed your dichotomous key, answer the two remaining questions. When you are finished, submit this assignment to your teacher by the due date for full credit.
1. Complete a dichotomous key for the 10 leaves on the Common Leaves sheet. The chart provided here allows for 11 pairs of statements. Depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.
2. Can more than one dichotomous key be developed to identify the same group of organisms? Explain. To answer this question, refer to this lesson’s dichotomous key for birds.
Answer:
Type your answer here.
3. If two different people use the same dichotomous key to identify the same organism, should they have different results? Explain.
Answer:
Type your answer here
I apologize if this makes no sense at all.
The following could serve as a dichotomous key to identifying the ten leaves: Oval or elliptic in shape. linear or lanceolate in form. cordate or triangular in form. Orbicular or reniform leaves. Oval or spatulate leaves. smooth leaf margin
What does a dichotomous leaf key entail?An instrument that assists in the identification of different leaf species is a dichotomous key for leaves. By offering two different explanations for each observation, it aids in the classification of species.
What kind of plant has a dichotomous key, specifically?For instance, a dichotomous key in tree identification would inquire as to whether the tree has leaves or needles. If the tree has leaves, the key then sends the user down one set of questions; if the tree has needles, an other list of questions is presented.
To know more about dichotomous key visit:-
https://brainly.com/question/2235448
#SPJ1
Wildebeests: A Keystone Species Use the data provided to answer the question below in CER format. Make sure to use at least two pieces of evidence to claim and provide reasoning. FIRE! Fire is actually an important component of savanna ecosystems. Fire kills young trees and seedlings, reducing the number of big adult trees that grow over time. Since trees compete with grasses for light and soil moisture, fire actually helps the grasses and keeps the savannas open. Dr. Rico Holdo, a professor at the University of Missouri, and his colleagues modeled and wrote about the interactions of fire, rain, grasses, trees, and the various animals in the Serengeti. The interactions get complicated quickly, but I’ll try to give you a run-down of how they see fire acting in this ecosystem. First, as I’ve mentioned, fire suppresses trees and encourages grasses. If you have both fire and rain, but no animals, then something interesting happens: the rain encourages the trees, but it encourages the grasses, too. As the grasses get taller, there is more fuel for fire, and the fires become more widespread and more damaging. These fiercer fires really hurt the trees – in fact, the damage from fires (because of more rain) is more important than the extra boost the trees get directly from the rain. So more rain actually means fewer trees. With me so far? We’re now going to throw animals into the mix – well, at least some of the animals. Let’s talk about the grazers. The grazers eat the grass, and this reduces the fuel available to fire. If you have a lot of grazers, like we do in the Serengeti, the grass height is reduced a lot. That means fewer fires and that rain once again helps the trees. Further, many of the grazers are migratory and move around the landscape a lot. They don’t eat the savanna grasses in a neat, tidy, organized way. Instead, they create a patchy mosaic of grass heights, and with those different grass heights come different susceptibility of patches of grass to burn. With rain and fire and grazers, we now have a landscape of grasses of different lengths, patchy fires, and some areas dense with trees and some areas with fewer trees. All that variation means more diversity – more diversity of the grasses, plants, and trees, and more diversity of the animals that rely on them. All that diversity is due, in part, to fire. A Keystone species is a plant or animal that plays an important and unique role in how the ecosystem functions without the key stone species to ecosystem would be very different. One scientist identified Keystone specie it to look as how changes to their abundance (number ) affect other organisms. Often, there are many indirect effects of changes to ecosystems. Claim The wildebeest in the Serengeti are a keystone species. What evidence supports this claim? (Make sure to provide reasoning)
The evidence which supports this claim is that wildebeest grazing habits help reduce grass height and prevent fire spread.
What reasons are behind wildebeest in the Serengeti?Evidence 1: Grazing habits of wildebeest help reduce grass height and prevent the spread of fires. As mentioned in the article, grazers like wildebeest eat the grass and reduce the fuel available for fires, which prevents fires from spreading and damaging the trees.
Evidence 2: Migration patterns of wildebeest create a patchy mosaic of grass heights that affect the susceptibility of grass patches to burn. The article states that wildebeest are migratory and create a patchy mosaic of grass heights. This means that some areas of the savanna are dense with trees, while others have fewer trees.
These wildebeest are a keystone species in the Serengeti because of their grazing habits and migration patterns, which help to maintain a diverse ecosystem. Without wildebeest, the grass height would increase, leading to more frequent and more damaging fires. This would negatively impact the trees and reduce the diversity of the ecosystem.
Read more about wildebeest
brainly.com/question/28661271
#SPJ1
In fruit flies, brown bodies are dominant to black bodies. cross two heterozygous fruit flies. determine the phenotypic and genotypic ratios. then determine how many fruit flies, if 200 are born, will have black bodies
Answer:Cross a black fruit fly with a heterozygous fruit fly. Determine the phenotypic and genotypic rations of their potential offsping
Explanation:
Which type of macromolecule contains phosphorus, and where in the molecule are phosphorus atoms located
Answer:
Nucleic acids, which include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), are the macromolecules that contain phosphorus. Phosphorus is an important component of the nucleotides that make up nucleic acids.
In DNA, the phosphate group is located on the 5' carbon of the sugar molecule, which is connected to the nucleotide base via a phosphodiester bond. The phosphate groups of adjacent nucleotides form the backbone of the DNA molecule.
In RNA, the phosphate group is similarly located on the 5' carbon of the sugar molecule, but RNA has a ribose sugar instead of a deoxyribose sugar. RNA also typically contains single-stranded nucleotides, rather than the double-stranded structure of DNA.
Overall, phosphorus plays a critical role in the structure and function of nucleic acids, which are responsible for storing and transmitting genetic information.
a cost benefit analysis balances the cost of an action against what
A cost-benefit analysis balances the cost of an action against its benefits.
It is a systematic process used to evaluate the pros and cons of a decision or project by comparing the expected costs with the expected benefits.
The costs can include financial expenses, time, resources, and any negative impacts incurred as a result of the action. On the other hand, the benefits encompass the positive outcomes, advantages, or gains derived from the action.
By assessing and quantifying both the costs and benefits, a cost-benefit analysis helps decision-makers determine whether the benefits of undertaking the action outweigh the costs and whether it is economically viable or beneficial to proceed with the proposed course of action.
Know more about cost-benefit:
https://brainly.com/question/27318112
#SPJ6
Plant and animal cells
What are the differences between plant and animal cells?
Plant cells have a cell wall, chloroplasts, and a large central vacuole, while animal cells have lysosomes and centrosomes.
Plant cells are eukaryotic cells that contain a cell wall, chloroplasts, and an enormous focal vacuole, while creature cells come up short on cell wall, have little or no vacuoles, and don't contain chloroplasts. The cell wall in plant cells gives extra security and backing, while the enormous focal vacuole stores water and supplements. Chloroplasts in plant cells empower them to create their own food through photosynthesis. Creature cells depend on devouring different living beings for food. Also, creature cells commonly have lysosomes for squander the executives, while plant cells use vacuoles for capacity and reusing. Both plant and creature cells have a core, mitochondria, and different organelles liable for cell capabilities.
To learn more about plant and animal cells, refer:
https://brainly.com/question/1493437
A student drew the following diagram to model the structure of an Australian
grassland community. Kangaroos are herbivores. In which level of the
student's model would you find kangaroos?
A. Level 3
B. Level 4
C. Level 1
D. Level 2
Based on the typical structure of a food web or ecological community model, kangaroos would most likely be found in Level 3, which usually represents the secondary consumers in a food chain or web.
option A.
In which level of the student's model would you find kangaroos?This means that kangaroos feed on primary consumers such as grasshoppers or small mammals that eat plants.
Level 4 typically represents the top predators or tertiary consumers in the community, which may include large carnivorous animals that eat other consumers.
Levels 1 and 2 usually represent the producers (e.g., plants) and primary consumers (e.g., herbivorous insects) in the community, respectively.
Learn more about food web here: https://brainly.com/question/4656320
#SPJ1
which process results in greater genetic diversity in offspring
Answer:
Genetic variation is increased by meiosis. Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during pro phase I.
Answer:
Genetic variation is increased by meiosis
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I.
Explanation: Hope this helps. Mark me brainliest! :))
How can you make your topic relevant (culturally, socially, personally) for the audience? Consequently, what can the audience learn from your presentation? On your own word 100 word count please
By making my topic relevant to the audience, I will draw on personal and cultural experiences.
Cultural, Social, and Personal Relevance of TopicsIf I am talking about the importance of physical fitness, I can relate it to the audience's own lives by citing examples of how physical fitness can help them reach their individual goals.
I can also draw on cultural experiences by citing examples of famous athletes who have used physical fitness to achieve success. By making the topic relevant, the audience can learn the importance of physical fitness in achieving their goals, as well as the benefits of a healthy lifestyle.
Additionally, they can gain insight into how physical fitness can be used to achieve success in all aspects of life. By making the topic relevant to the audience, I can ensure that they can learn valuable lessons from my presentation.
Learn more about Topics here:
https://brainly.com/question/17915079
#SPJ1
nina wasnts to learn about the toxic effects of chemicals on humans
Answer:
1). it weakens the immune system
2). Effects both mental and physical health
2).Can lead to death
Define the definition: Heterozygous
The _____ refers to the overarching 1930s legislation that deals with many aspects of the production and sale of farm-raised commodity crops.
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
Federal Farm Loan Act
Agricultural Act
Sarbanes-Oxley Act
U.S. Farm Bill
The correct answer is the "U.S. Farm Bill."
What is U.S farm bill?
The U.S. Farm Bill is a comprehensive legislation that is passed by the United States Congress every five to seven years to address a wide range of issues related to agriculture, rural development, conservation, and nutrition. The first Farm Bill was enacted in 1933 during the Great Depression, and since then, it has been amended and revised numerous times to reflect the changing needs of the agricultural sector.
The Farm Bill is a significant piece of legislation that impacts the lives of millions of people across the United States, including farmers, ranchers, consumers, and rural communities. It provides funding for a range of programs, such as crop insurance, conservation, agricultural research, rural development, and nutrition assistance programs, including the Supplemental Nutrition Assistance Program (SNAP).
The Farm Bill also includes provisions related to the production and sale of commodity crops, such as wheat, corn, soybeans, and cotton. These provisions include subsidies and price supports that aim to stabilize commodity prices, promote agricultural production, and ensure a reliable supply of food and fiber.
In conclusion, the U.S. Farm Bill is a crucial piece of legislation that provides support to the agricultural sector and addresses a wide range of issues related to rural development, conservation, and nutrition. Its provisions related to commodity crops are just one of the many aspects of this comprehensive legislation.
To know more about bills visit:-
https://brainly.com/question/26039671
#SPJ1
1. How far will a car travel at 50 m/min in 25 min?
2. How far will a car travel at 50 km/h in 7 h?
3. How long will a ball roll 400 m at 70 m/min?
4. If a car travels from 3 m/s to 30 m/s in 3 seconds, what is the car's average acceleration?
Answer:
1. 1,250 miles
2. 350 km
3. 5.71 min
4. 10 m/s
Explanation:
50 m/min * 25min = 1250 miles
50 km/hr * 7 hrs = 350 km
Question was confusing, but if I interpreted it correctly...
400 m ÷ 70 m/min = 5.71 min
3 m/s to 30 m/s in 3 sec would be an increase of 10 m/s
I need help with a question, can someone solve it for me?
Why does the earth experience high tides?
A. High tides occur because the comet Neowise passed by Earth
B.The earth experiences high tides because the gravitational force of the moon attracts the water and solid earth, pulling them closer to the moon
C.High tides occur because Jupiter is in alignment with Saturn
D.This causes areas of water that bulge away from the earth.
Answer:
B.The earth experiences high tides because the gravitational force of the moon attracts the water and solid earth, pulling them closer to the moon
Explanation:
Based on the learner a, b and c ,choose one of the certificate and identify two courses you would follow with such a certificate
Undergraduate and graduate certificate programmes are the two main categories. Students with a high school diploma or a GED can enrol in undergraduate certificate programmes.
What types of school certifications are there?Educational certificates come in a variety of forms, depending on their intended use, including marksheets, legitimate certificates, provisional certificates, gap certificates, backlog certificates, migration certificates, character certificates, and certificates for study, among others.
Why are certificate programmes essential?A professional certificate programme has many advantages, one of which is that it boosts your chances of getting promoted or paid more at your current company while also creating new work options. As a result, upgrading one's skills is advantageous for both working professionals and all recent grads.
To know more about categories visit:-
https://brainly.com/question/30577314
#SPJ1
The proper balance among producers , consumers and decomposers is the result of balanced ecosystem in nature. Justify this statement with appropriate examples.
Answer:
The balance among producers, consumers, and decomposers is essential to maintaining a healthy and sustainable ecosystem in nature. Each of these components plays a critical role in the cycling of energy and nutrients within an ecosystem, which ultimately affects the health and productivity of all living organisms within it.
Producers, such as plants, algae, and some bacteria, are at the base of the food chain and are responsible for converting sunlight into organic matter through photosynthesis. This organic matter serves as the primary source of energy for all other organisms within the ecosystem. Without producers, there would be no food source for consumers, and the entire ecosystem would collapse. For example, in a terrestrial ecosystem, plants are the primary producers and are consumed by herbivores, which are then consumed by carnivores.
Consumers, including herbivores, carnivores, omnivores, and scavengers, obtain their energy by consuming other organisms. They play an essential role in regulating the populations of other organisms within the ecosystem, and their feeding habits affect the balance of the food chain. For instance, in a marine ecosystem, sharks are apex predators that consume a wide variety of organisms, including fish, sea turtles, and seals. Without predators like sharks, the populations of prey species would increase, leading to competition for resources and potential overconsumption of the producers.
Decomposers, such as bacteria and fungi, break down dead organic matter and return nutrients to the soil or water, where they can be taken up by producers. Decomposers are critical to the recycling of nutrients within an ecosystem, and their activity helps to maintain a healthy balance of energy and nutrients. For example, in a forest ecosystem, decomposers break down fallen leaves, branches, and other organic matter, returning nutrients to the soil, which can be taken up by plants and other producers.
In conclusion, the balance among producers, consumers, and decomposers is crucial to maintaining a healthy and sustainable ecosystem. The interactions between these components help to regulate the populations of organisms within the ecosystem and ensure that energy and nutrients are cycled efficiently. Disruptions to this balance, such as overconsumption of producers or loss of decomposers, can have severe consequences for the entire ecosystem. Therefore, it is essential to protect and conserve all components of the ecosystem to maintain a healthy and sustainable environment for future generations.
Explanation:
I just want to know if i’m labeling this right.
The labelled diagram of structure of DNA and DNA replication has been attached below.
What happens in DNA replication?DNA replication is the process by which a cell copies its genetic material in preparation for cell division. It is a vital process that ensures that each new cell receives an exact copy of the genetic information carried by the parent cell.
The process of DNA replication occurs in the following steps:
Initiation: The DNA double helix is unwound by the enzyme helicase, creating a replication fork where the two strands separate.
Priming: Primase synthesizes short RNA primers along the DNA template strand to provide a starting point for DNA synthesis.
Elongation: DNA polymerase III binds to the RNA primers and begins adding nucleotides to the growing DNA strand in the 5' to 3' direction.
Termination: DNA polymerase I removes the RNA primers and replaces them with DNA nucleotides. DNA ligase then seals the gaps between the Okazaki fragments, joining the newly synthesized DNA strands together.
The process of DNA replication ensures that each new cell receives an exact copy of the genetic information carried by the parent cell. The accuracy of DNA replication is critical to the maintenance of genetic information and the prevention of mutations that can lead to genetic disorders or diseases.
To know more about DNA replication, visit:
https://brainly.com/question/16464230
#SPJ1
HELP WITH BIO HOMEWORK!!
Answer options:
a. Because foxes are smaller than jackals, gray wolves are less closely related to pampas foxes.
b. Given how little its DNA has changed, the golden jackal was the gray wolf's most recent ancestor.
c. Given that their DNA sequences are more similar, gray wolves and golden jackals are more closely related.
d. Because their DNA sequences differ greatly, scientists believe that the pampas fox was the gray wolves' earliest ancestor.
How are speciation and reproductive isolation similar and different?
Answer:
Look below
Explanation:
Reproductive isolation represents a breakdown in the ability to reproduce successfully with sexual partners of another type of organism, and speciation requires a build up of reproductive isolation between diverging types of organism until gene flow is sufficiently rare or ineffective that the entities are considered
PLS HELP I GIVE BRAINLIEST
Fill a clear bin (shoe box size works best) about half way with dirt. The dirt can be from outside or a garden supply store.
Lightly moisten the dirt by sprinkling water over it.
Place about 5 worms in the bin. The worms can be dug up from outside or from a bait store.
Observe the worms, in a period of 2,5,10 minutes and 1 and 2 days
What do the worms do when first placed in the dirt.
After 2 minutes where are the worms?
After 5 minutes where are the worms?
After 10 minutes where are the worms?
When you return after one day what do you notice?
When you return after two days what do you notice?
When first placed in the dirt, the worms may burrow into the soil or crawl around on the surface.
Exploration.
Less crawling around.
Motionless on the soil.
Tunnel creation.
Visible casting.
What are the likelihoods of worm behavior?After 2 minutes, the worms may still be exploring their new environment or starting to burrow deeper into the soil. After 5 minutes, the worms may have burrowed deeper into the soil or be crawling around the surface less frequently. After 10 minutes, the worms are likely to have burrowed deeper into the soil or remain motionless on the surface.
When returning after one day, you may notice that the worms have created tunnels in the soil and have consumed some of the organic matter in the soil. They may also have deposited their castings, which are rich in nutrients. When returning after two days, you may notice that the worms have continued to create tunnels and consume organic matter, and their castings may be more visible.
Learn more on worm behavior here: https://brainly.com/question/15928167
#SPJ1
give three functions of a fruit
Answer:
please make me brainalist and keep smiling dude I hope you will be satisfied with my answer
Explanation:
A fruit protects the immature seeds from animals and extreme climatic conditions. It stores food material. It attracts animals that help in dispersing or scattering the seeds to distant places.