Answer: The correct answer for the given mechanisms influencing gene pool are the mechanisms of evolutionary change, which are described as follows-
1) Gene Flow
- It is described as the transfer of genes from one population to another population so that frequency of gene is increased.
-A zebra migrates to join a different herd of zebras.
2) Natural Selection
- A mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.
-Competition for sunlight leads to taller trees.
3) Mutation
- Permanent change in the nucleotide sequence of DNA ( genetic material) that could have harmful or useful consequences.
-The DNA of a snake changes to make its venom stronger.
4) Genetic Drift - It is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.
-A grassfire randomly sweeps through a population of buffalo and kills most of the animals.
Photosynthesis is a two stage process in which the first stage is light dependent and occurs in the thylakoid membranes where photosynthesis exist. The products of the first stage are needed for the second stage to occur in the stroma of the chloroplasts.
second challenge to life on land was the distribution of water and other materials to each cell. In aquatic forms, transport occurs directly from the surrounding environment. On land, however, plants must get water and other materials from the soil.<span>Body support
</span><span>As plants evolved from aquatic to terrestrial environments, several obstacles stood in the way. One obstacle was structural support. In water, organisms are buoyant and the effects of gravity are minimal. Even among larger forms, like kelps, structures with gas-filled vesicles allow them to float. On land, however, if a plant is to grow tall, it needs to withstand the forces of gravity.
</span><span>A third challenge during the transition to land involved bringing sex cells together. In water, sperm are able to swim directly to eggs. On land, this can only happen in moist environments.
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Although A Long Way Gone by Ishmael Beah is a memoir, it uses many elements of fiction.
<h3>What is a memoir?</h3>
Memoir is a type of literary genre that constitutes a personal narrative and its most significant feature is the insertion of the writer himself as the main character.
Writing an memoir implies a literary pact and not a historical or documentary one, because sometimes the narrative presents a memorialistic rescue (based on reality) and sometimes it builds the plot with the threads of fiction.
So, in this case, A Long Way Gone by Ishmael Beah is a memoir, it uses many elements of fiction.
See more about textual type at: brainly.com/question/9045984
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The semi fluid matrix that surrounds organelles
in a cell is called the cytoplasm.<span>
<span>Organelles are the specialized structure with in a cell. Some
biologist says that organelle is a cell compartment. Mitochondria and
plastids are two broad classes of organelles. Cytoplasm is a thick substance
which fills each cell.</span></span>
