Answer: I and II
Explanation: so basically, when adaptation occurs, it usually happens over a long period of time due to climate, predators, etc. because of these adversities, Genetic mutations occur, helping that animal and its species as a whole survive, which checks number 2. number one is also correct because adaptation can not be predicted. it happens randomly at some point in time. 3 is incorrect because multiple offspring in a species could have adaptations that provide more of an advantage.
Which of the following illustrates the principle of induction in invertebrates?
A. In an embryo, the presence of a notochord beneath the ectoderm results in the formation of a neural tube.
B. A neuron synapses with another neuron via a neurotransmitter.
C. Eye muscles constrict in response to light.
D. Secretion of TSH stimulates the secretion of thyroxine.
E. The maternal parent induces spontaneous expression of recessive genes.
Answer:
A
Explanation:
A
How does the ectoderm that will make up the future eye know to develop into an eye? The cells are "told" to develop into an eye because the nearby retina releases chemical signals that direct the development of the cells. This process is called induction. Choice A depicts a similar situation. The notocord releases chemical signals that tell the overlying ectoderm that it is time for it to become the neural tube. None of the other choices depict the process of induction.
3
Which of the following statements are true? Choose more than one
answer.
Oxygen is the most abundant gas in Earth's atmosphere
Gases in the stratosphere protect living organisms from solar
radiation
Wavelength affects the color of light
Gases are thicker in the upper levels of the atmosphere
Not all wavelengths of light are scattered by atmospheric
gases
Earth's atmosphere absorbs blue light most efficiently
Answer:
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
Explanation:wfnwkfnskfnds
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
Oxygen is the most abundant gas in Earth's atmosphere
What is inside a bacteriophage?
O protein
O DNA
O carbohydrate
O lipid
Answer:
the correct answer is DNA
Describe the nutrient cycle. How does soil contribute to this cycle?
Answer:
The nutrient cycle is a system where matter and energy are transferred between living organisms and non-living parts of the environment. This occurs as animals and plants consume nutrients found in the soil, and these nutrients are then released back into the environment via decease and spoilage
Homologous chromosomes may exchange segments; this is called crossing over. Crossing over increases genetic variability. When does crossing over occur?
Question 2 options:
Meiosis II
Mitosis
Both mitosis and meiosis--crossing over may occur at any time during the cell cycle.
Meiosis I
Question 3
In order for meiosis to create four, genetically different gametes, DNA replication must occur. Which of these best describes when DNA replication would occur?
Question 3 options:
prior to meiosis II
prior to meiosis I and meiosis II
prophase I in meiosis I
prior to meiosis I
Question 4 (1 point)
The embryo's development as seen here represents which processes in the development of any multicellular organism?
Question 4 options:
meiosis followed by mitosis.
mitosis and cell differentiation.
protein synthesis followed by meiosis.
meiosis and cell differentiation.
Question 5
Why do some organisms reproduce aseggsually?
Question 5 options:
To rapidly produce like offspring
To increase genetic diversity
To have a variety of offspring at the same time
To get rid of genetic problems while reproducing
A) Crossing over occurs in : Meiosis I ( D )
B) DNA replication would occur : Prior to meiosis I and meiosis II ( B )
C) The embryo's development represents ; meiosis and cell differentiation ( D )
D) Some organisms reproduce aseggsually ; To rapidly produce like offspring
What is Crossing over and DNA replication
Crossing over involves the swapping of genetic materials, and it occurs in prophase I of meiosis before meiosis II the crossing over of genetic materials are over. while DNA replication is the process whereby DNA make an exact copy of itself during the process of cell division and this process occurs prior to meiosis I and meiosis II
The development of an embryo in the missing diagram represents meiosis and cell differentiation.
Hence we can conclude that the answers to your questions are as listed above.
Learn more about Homologous chromosomes : https://brainly.com/question/8253366
what is is the attraction of water molecule to each other
Very fast brainlist
One person consumes the equivalent of five cows per year. Five cows consume a total of 39 million Calories of vegetation per year. One person only needs one million Calories a year to survive. Which statement best describes the efficiency of energy transfer in this scenario?
It is very efficient because the person can eat less.
It is inefficient because less energy is needed at the top.
It is very efficient because most energy is made by producers
Only a portion of energy from vegetation makes it to a person.
Answer:
It is very efficient because the person can eat less.
Explanation:
the common knowledge answer
Only a portion of energy from vegetation makes it to a person. The correct option is D.
What is energy efficiency?The definition of energy efficiency is the use of less energy to carry out a task or achieve a goal.
Ecological efficiencies at each trophic link determine the food chain efficiency (FCE), which is calculated as the percentage of energy fixed by primary producers that is transmitted to the top trophic level.
The energy supply accessible to trophic level N+1 divided by the energy used by trophic level N is the definition of ecological efficiency.
Only a percentage of the energy from vegetation makes it to a person, which best sums up the efficiency of energy transmission in this situation.
Thus, the correct option is D.
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Brown hair is dominant and blonde hair is recessive.
What percent of the offspring will have blonde hair if the parents have the following alleles?
BB
Bb
A. 75
B. 25
C. 50
D. 0
E. 100
Answer:
If we assume B = Brown and b= blonde, Phenotypically the percent of offspring having blonde hair is D. 0
Explanation:
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Answer:
Explanation:
Advantages to community:
1. Geothermal energy is a renewable energy resource because heat extracted is very small compared to the Earth's heat content.
2. It is reliable and constant source of energy as it can extracted all through the year despite changing weather patterns.
3. Geothermal energy is widely available and it creates new job opportunity.
Disadvantages:
1. Cost of installation of geothermal heat pumps are high.
2. This power plants plants are suitable to particular region and they are far from cities.
Advantage to the environment:
1. It is echo friendly and non-polluting from production to use.
2. Geothermal plants occupy a less space, no-mining or no transportation is require and thus protects the natural environment.
3. There is no wastage or by -products.
Disadvantage:
1. This power plants may trigger earthquakes.
2. Power plant uses lot of water in its processes.
Which one of the following is NOT a
characteristic of livings things?
A. must grow and develop
B. must be made of more than one cell
C. must be able to reproduce
D. must have a universal genetic code
In general, bacterial
cells are prokaryotic.
Which cells are eukaryotic?
a. Bacterial cells
b. Animal and plant cells
( it’s b )
Answer:
B . Animal and plant cells
Animal and plant cells are eukaryotic cells.
What are Eukaryotic cells?The region One of the three realms of life is eukaryote; the other two are bacteria and archaea.Organelles that are membrane-bound and found in eukaryotic cells include the nucleus, mitochondria, and endoplasmic reticulum. Protozoa, fungi, plants, and animals are examples of eukaryotic cell-based organisms. The biological domain Eukaryote is where these species are categorized.Animals, fungi, protists, and plants are eukaryotic cells examples. They have chromosomes, which organize their genetic material.Since prokaryotic cells lack a membrane-bound nucleus, eukaryotic cells are the main difference between these two types of creatures. Eukaryotes store their genetic material in their nuclei.learn more about eukaryotic cells here: https://brainly.com/question/13969093
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What are the four features of minerals? (use complete sentences and your own words.)
(NO LINKS PLEASE)
Answer:
1)All minerals are naturally occuring.
2)They have to have a crystalline structure and a definite chemical composition.
3)They are inorganic.
4)They are a solid.
Explanation:
1-You have to find a mineral in the nature. It cannot be created in a lab.
2-Crystallline structure is the ordered arrangement of ions, molecules, or atoms in an object.
3-Inorganic means that the object has not bonded with carbon.
4-Solid means that it is not fluid and is hard and stable.
Hope this helps! :)
form and function are related. describe how the form of the tracheal wall is related to its four functions
Given what we know we can confirm that the tracheal wall is related to its function in that it allows it to conduct air in a sealed manner and protect the individual.
What is the function of the trachea?The primary function of the trachea is to conduct air into the lungs. For this, the trachea is long and narrow, to allow air to flow in a directed manner towards the lungs. The trachea is also "armored" to protect this air flow and is lined with mucus to sweep away any unwanted particles from the air.
Therefore, we can confirm that the trachea is armored and lined with mucus along its long, tube-like shape, which allows this structure to conduct air in a safe, clean, and direct manner directly towards the lungs.
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Complete this sentence: Energy that is not transferred to the next trophic level is mostly escaped as ________ energy.
heat
chemical
trophic
biomass
Answer: heat
Explanation:
Energy that is not transferred to the next trophic level is mostly escaped as heat energy.
which of the statements accurately describes how water moves through earth and its atmosphere
Answer:
A. Liquid water falls from outer space and is absorbed or d*unk by living things. It then evaporates into the atmosphere and forms clouds, which float into space.
Fathers can only pass X-linked traits to their _[blank1]_, while mothers can pass X- linked traits to their _[blank2]_. What option correctly completes this sentence. daughters; daughters only daughters; daughters only sons; sons and daughters sons; sons and daughters daughters; sons and daughters daughters; sons and daughters sons; sons only
Males only have X chromosomes and only pass to their daughters
Explanation:
4. What are the functions of leaves? (Select all that apply.)
release oxygen
perform photosynthesis
absorb nutrients
absorb carbon dioxide
Answer:
B. Perform photosynthesis
.....................
Answer:
perform photosynthesis
Explanation:
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What is the most likely effect of this?
an increase in mutations in both bird populations
an increase in gene flow between the bird populations
an increase in genetic drift between the bird populations
an increase in mutations in the island population
Answer:
B. An increase in gene flow between the bird populations.
Explanation:
Answer:
B (gene glow)
Explanation:
an increase in gene flow between the bird population
PLEASE ANSWER THIS QUICKLY!!
Answer:
1. Gas giant
2. Galaxy
3. Universe
Explanation:
I know my space. Hope this helps!
Answer:
Person above is correct. =D
Explanation:
1. Gas giant
2. Galaxy
3. Universe
Why is it necessary for organisms to eat food? In your answer, describe the process that goes
from food (for instance, a sandwich) to the molecules your cells need. Use your own words, and
be specific in your explanation (one paragraph). You should not need any resources besides
your lecture notes to answer this question
Answer:you to eat to get energy
Explanation:
The main reason you need to eat is to get energy. Food is your body's only supply of energy. However, this energy must be converted from the apple (or any other food you eat) into an energy source that your body can use.
Explain why the pattern of differences
that exists from earlier to later fossils in the
fossil record supports the idea that evolution
has taken place on Earth.
Answer:
Different layers of fossils found in sedimentary layers of the earth show that past species have died off and adapted in order to survive.
Explanation:
As soon as the rope breaks in picture 4, the car continues to roll forward on its own. This motion is BEST explained by which of the following laws? A. AN object in constant motion tends to remain in motion unless acted on by and unbalanced force. B. For every action there is an equal and opposite reaction/ C. An unbalanced force acting on an object will cause the object to accelerate. D. The force of gravity will cause an object to accelerate toward the earth at a constant rate.
The answer is A
Explanation:
due to the fact of the use of gravity
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Before uniformitarianism, what theory was widely accepted?
1.) Uniformitarianism is the only theory
2.) The law of superposition
3.) Catastrophism
Answer:
3.)CATASTROPHISM
Explanation:
catastrophism suggested the features seen on the surface of earth such as mountains,were formed by large abrupt changes or catastrophes
Environmental resistance includes
biotic/abiotic factors that are
to life.
Answer:
The environmental resistance factors are all the factors or things that keep a population of the organisms from endlessly increasing i.e. keep a check on it. . They reduce the chances for reproduction, affect the health of organisms/individuals, and raise the death rate in the population.
The environmental resistance factors include the factors that are biotic and abiotic.
• The biotic factors are things like a predation, a parasitism, lack of food, competition with other organisms and disease.
• Abiotic factors include factors like drought, fire, temperature, and even the wrong amount of sunlight could affect it.
What is the most interesting
Or surprising thing you learned about the universe and galaxies?
Why are invasive species considered a threat to native wildlife?
Answer:
they can consume all the native prey and have few predators.
Explanation:
Which one is warmer a normal year or El nino year?
HELP, define genetic engineering and Describe how DNA is modified for use in genetic engineering.
Answer:
Genetic engineering is deliberate modification of genome to gain desired traits.
The main steps of genetic engineering:
Restriction enzymes are used to isolate the required gene leaving it with sticky ends. Sticky ends are a short section of unpaired bases A vector, which is usually a bacterial plasmid or a virus, is cut by the same restriction enzyme leaving it with corresponding sticky ends. The vector and the isolated gene are joined together by ligase enzyme. The vector inserts the gene into required cells. The genes are transferred to animal, plant or microorganism cells, during early development, which allows them to develop with the desired characteristics.
In the early stages of development all animals begin as what?
A phenotype ratio of 9:3:3:1 in the offspring of a mating of two organisms heterozygous
for two traits is expected when:
A. the genes reside on the same chromosome
B. each gene contains two mutations
C. the gene pairs assort independently during meiosis
D. only recessive traits are scored
E. none of the above
C. the gene pairs assort independently during meiosis.