Answer:
Stabilizing natural selection keeps gene frequencies constant in a population. The normal, most common traits are selected for and preserved so only a limited amount of evolution occurs and species can remain unchanged even over long periods of time.
Explanation:
A biological process called reproduction occurs when an organism creates young (offspring) of the same species.
What influence natural selection for survival of species?Gene frequencies in a population are maintained constant through stabilizing natural selection.
Because only a small amount of evolution takes place and the most typical, most prevalent features are preserved, species can persist unmodified even across very lengthy epochs.
It is among the most crucial traits shared by all living things. While not necessary for an individual's existence, reproduction is necessary for the survival of a whole species.
Therefore, natural selection has allowed species such as sharks and alligators to remain genetically stable for thousands of years.
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There are thirteen species of finch found on the Galapagos Islands. These finches are commonly referred to as “Darwin’s Finches” and are a common example of natural selection and adaptive radiation.
Which question would MOST help a scientist determine the level of biodiversity, that exists among the thirteen species of finch on the Galapagos Islands?
Question 6 options:
What is the most common beak color among the finches?
How many finches are more than five years old?
Which species of finch has the greatest average mass?
What variation exists between the species for traits like beak size and shape?
Answer:
What variation exists between the species for traits like beak size and shape?
Explanation:
If the question is looking for biodiversity, the answer would include variation.
Populations of caribou show a cyclical fluctuation with predictable patterns in Norway. Reindeer populations are higher in the
southern regions in winter months while populations are higher in the northern regions in the summer months. Infer the cause of
these predictable changes for the Norwegian reindeer populations.
-))
A)
B)
C)
Reindeer migrate from north to south in the winter months to reach more
fertile feeding grounds. They migrate to the north in summer months.
The reindeer migrate from north to south in the summer months to reach
more fertile feeding grounds. They migrate to the north in winter months.
The reindeer populations migrate to an intermediate location in Norway to
mate and then diverge to the northernmost and southernmost regions to
avoid competition for food.
There are two species of reindeer in Norway. The northernmost species
reproduces in the winter, causing an increase in population size. The
southernmost species reproduces in the summer, causing an increase in
population size.
D)
Answer:D
Explanation:
Polo g the goat
Answer:
the correct answer is a
Explanation:
Multiple Choice Which of the following events would cause local competition for fuel oil in a small American town?
imposing tariffs
drought
hurricane
sporting events
Answer:
The correct answer is D: Sporting events
Explanation:
I did it on edge 2022
Which factors affect the gravitational force between two objects?
Answer: The size of each object and the space between them.
When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.
answer this question.......asap
A compact cluster of spore-bearing structures in
some seedless vascular plant sporophytes.
Answer:
B :)
Explanation:
Ability of an organism to change internally or externally in relation to its envoronment
Answer:
Homeostasis
Explanation:
Answer:
Homeostasis
Explanation:
These changes help the organism to maintain a constant equilibrium with the external environment in order to support their vital functions.
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Define the following terms:
1. Shadow
2. Pinhole camera
3. Screen
Answer:
shadow
Explanation:
a dark area or shape produced by a body coming between rays of light and a surface
How might green spaces help reduce the negative impact that humans have on Earth’s water supply?
It would give nature a place to fight back, and become more healthy, and less hindered. Cities mess up the evaporation cycle, and because of parks, the water is able to be soaked up by grass, and then released through evaporation. When it rains over a city, the water goes into gutters, and becomes more polluted.
What is a swell wave?
Answer:
Swell are waves (usually with smooth tops) that have moved beyond the area where they were generated. The distance between the crests, or tops, of the waves that make up swell is usually much greater than the distance between waves being actively generated by wind blowing over the water.
Explanation:
Describe three ways in which economies are
likely to be affected by climate change
Answer:
1. Climate change affect the geography within which economy of the world operate
2. It changes the comfortability of human within the global industry
3. Growth Zone is affected
Explanation:
1. Climate change affect the geography within which economy of the world operate: economic of the world are affected by change in climatic condition in the since that there is shift in the usual period of seasons. For example, taken Nigeria as a region in West Africa, rainfall is expected to start around March in almost all part of the country, however, due to climate change, some part don't still have rain till May. This causes a shift in farmers plan and affect the supply of farm produce to the local market and to the global market, in turn affecting the gross domestic product of the country.
2. It changes the comfortability of human within the global industry. Take for example, fossil fuel, it is part of human being to address some unfavourable conditions among which is climate change which causes global warming, during this period, the way industries and people uses fossil fuel are been changed and it have direct effect to global economy.
3. Growth Zone is affected: change in climatic condition changes world economy growth zones. Thus could be seen in transportation sector, when the water level is affected, international movement of cargoes by ship are affect and hence, some trades agreements are altered thereby changing the growth zone.
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What does it mean for a virus to "infect" a cell?
The virus lands on the outside of the cell and remains there until the cell produces more viruses.
The virus lands on the outside of the cell and eats proteins on the surface of the cell.
O The virus lands on the outside of the cell and injects its genetic material into the cell.
The virus lands on the outside of the cell and injects its proteins into the cell.
Answer:
for a virus to infect a cell, it means to spread. when it spreads, it overtakes what should be a healthy functioning cell and pollutes it.
d) During Transcription, a nucleotide has been deleted. Explain the effect this will have
on DNA as well as what happens in each step along the way to a protein.
Answer:
this mutation may change the open reading frame of the resulting RNA sequence and its final product, which is a protein in the case that this gene is used to synthesize a messenger RNA (mRNA) sequence
Explanation:
During the transcription, a region of DNA named 'gene' is used as template to produce an RNA molecule, typically a primary transcript of mRNA (pre-mRNA). Subsequently, this pre-mRNA suffers a process named RNA processing in order to generate a mature mRNA which is finally used to create a protein by a process called translation. If a deletion occurs during transcription, it may change the open reading frame (ORF) of the resulting mRNA when the mutation occurs in an exon of the protein-coding gene (i.e., occurs a frameshift mutation), while this deletion may not have any effect if it is localized within the introns which are removed during RNA processing. A frameshift mutation will change the amino acids that are added to the nascent polypeptide chain during translation.
Which of the following actions would decrease global warming?
Select one:
Decreasing the amount of methane in the air.
Increasing the amount of oxygen in the air.
Increasing the amount of water vapor in the air.
Decreasing the amount of nitrogen in the air.
Answer:
Decreasing the amount of methane in the air
Explanation:
Methane is a powerful greenhouse gas, which absorbs the sun's heat and doesn't allow it to escape therefore contributing to global warming
Decreasing the amount of methane in the air would decrease global warming. Therefore, option (A) is correct.
What is global warming?Global warming is the gradual increase in the Earth's average surface temperature, primarily due to the buildup of greenhouse gases in the atmosphere, such as carbon dioxide and methane. These gases trap heat and prevent it from escaping into space, leading to a warming effect on the planet.
The consequences of global warming are far-reaching and potentially catastrophic, including rising sea levels, more frequent and severe weather events, loss of biodiversity, and impacts on human health and well-being.
To address global warming, it is essential to reduce greenhouse gas emissions by transitioning to cleaner and more sustainable sources of energy, improving energy efficiency, and adopting more sustainable land use practices. Addressing global warming requires a collective effort from individuals, communities, businesses, and governments around the world.
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Proteins on the surface of vesicles determine where the vesicles go. Which cell organelle provides the instructions for these proteins?
OA. endoplasmic reticulum
OB. lysosome
Ос. mitochondria
OD
nucleus
Answer:
D. Nucleus.
Explanation:
A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life. A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
Some examples of cell organelles found in all living organisms such as trees, birds, and bacteria include; nucleus, cytoplasm, cell membrane, golgi apparatus, mitochondria, lysosomes, ribosomes, chromosomes, endoplasmic reticulum, vesicles, etc.
Proteins on the surface of vesicles determine where the vesicles go.
The nucleus is the cell organelle which provides the instructions for these proteins. It controls all the activities taking place in the cell and the synthesis of proteins.
8.
Which one is a true fish
a) Cuttle fish
b) Star fish
c) Dog fish
d) Silver fish
Answer:
Star fish
Explanation:
1. According to the CDC, is the flu vaccine safe and effective?
Answer: Yes it is safe and effective. As long as it is FDA approved.
Explanation: CDC says "flu vaccine licensed by the Food and Drug Administration (FDA) that is appropriate for the recipient’s age and health status"
which processes lead to the formation of igneous rock?
A. Heat and pressure
B. Melting and cooling
C. Erosion and weathering
D. Compacting and cementing
1
Which of the following animals has a body temperature
that doesn't change depending on the weather outside?
A. Snake
B.lizard
C. Dog
D. Shark
Answer:A
Explanation:i chose A because snakes are cold blooded
Animals have a body temperature that doesn't change depending on the weather outside A. Snake
What are endothermic?An endotherm, because the call shows, is used to refer to heat-blooded animals. they're the animals who keep a regular frame temperature no matter the ambient temperature. mainly, endothermic animals represent birds and mammals of the animal nation.
What animals are exothermic?Ectotherm, and referred to as cold-blooded animal—that is, any animal whose regulation of frame temperature relies upon outside sources, including sunlight or a heated rock floor. The ectotherms consist of fishes, amphibians, reptiles, and invertebrates.
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Which statement is most accurate about alternation of generations?
It involves changing the total number of chromosomes in a plant cell.
It refers to the haploid and diploid phases of the plant life cycle.
It refers to the processes of meiosis and fertilization.
It involves only some of the seedless vascular plants.
Answer:
It involves alternating haploid and diploid phases. alternation of generations is the term that is used to the life cycle that happens in plants and algae.
Explanation:
Answer:
B.It refers to the haploid and diploid phases of the plant life cycle.
Explanation:
Which of the following is not a biotic factor?
A. Giraffe
B. Lion
C. Cactus
D. Wildebeest
Answer:
cactus
dudidjdidj jdudhd
what color is inside the cell
Answer:
most of the cell are transparent
A company discovers a coal reserve under a mountain. The company uses bulldozers to remove soil and flatten the top of the mountain to expose the bedrock.
Then, the company uses machines to remove coal from the exposed bedrock. How will obtaining the coal affect the environment?
The removal of soil will increase the rate of erosion, and the removal of coal from the mountain will decrease the volume of carbon dioxide in the
atmosphere.
The removal of soil will decrease the rate of erosion, and the removal of coal from the mountain will decrease the volume of carbon dioxide in the
atmosphere.
The removal of soil will increase the rate of erosion, and the flattening of the mountain will change the direction in which water flows off of the
mountain
The removal of soil will decrease the rate of erosion, and the flattening of the mountain will change the direction in which water flows off of the
mountain.
Answer:
The removal of soil will increase the rate of erosion and the flattening of the mountain will change the direction in which water flows off of the mountain.
How is the small intestine designed to absorb digested food ?
Answer:
Small intestine is designed to more and more area for absorption of digested food and transfer into the blood for circulation throughout the body. The inner lining of small intestine has a large number of finger-like projections called villi. These villi provide a large surface area for absorption of food.
Explanation:
Hope this helps!
Have a good day or night!
➜ The small intestine is the main region for the absorption of digested food. The inner lining of small intestine has millions of tiny finger-like projections called villi. The presence of villi gives the inner walls of the small intestine a very large surface area for absorption of digested food. The villi are richly supplied with blood vessels which take the absorbed food to each and every cell of the body.
If an object sinks in a fluid, the buoyant force is ____ the weight of the object.
a.
greater than
c.
the same as
b.
less than
d.
doesn't apply
Please select the best answer from the choices provided
A
B
C
D
What is a basic function of a cell
Answer:
The answer is below
Explanation:
They provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.
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The theory of Proposed that sudden and widespread disasters that result in mass extinctions followed by repopulation could explain why species change over time
Answer:
Theory of Catastrophism
Catastrophism basically means Disaster.
According to Theory of Catastrophism, quick and widespread disasters lead to mass extinction (extinction of large number of species over time) followed by re-population after a notable period of time.
Define the following term:
1. Pinhole camera
2. Screen
please help asap and I’ll give brainiest!
Answer:
I think so A is the answer
Explanation:
changes in Geology over Time ... relative age – a rock layer's age compared to other rock layers ... Fossils give clues on how Earth may ... weather. ▫This helps us to infer that West. Virginia and Pennsylvania were both ... in the area. ... Many fish. Silurian 438 to 408 mya. First insects, vascular plants on land.
i hope my answer is correct and would help a little bit.
A mountain showed the following change in profile over millions of years.
Time
What happened to most of the material removed from the mountain?
Select one:
o
-A:The material disintegrated from exposure to sunlight.
-B:The material weathered to form new sediments.
-C:The material was destroyed by chemical reactions.
-D:The material was absorbed by plant roots.
Answer:
b
Explanation:
