Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction. For example, if a population is exposed to a new disease, selection will act on genes for resistance to the disease if they exist in the population.
Answer:
When a child is conceived each parent gives 23 of their chromosomes
The right answer is water.
A solution is a liquid containing several constituents
* The majority constituent is called solvent. Most often consists of water, the solution is called aqueous solution.
* The substances in solution are called solutes.
* The species in solution are either molecules or ions.
If we add water in the aqueous solution, we will have a dilution. On the contrary, if we add solute or remove water (pure water in solutes) we will have a concentration.
A fully formed infectious virus particle that is able to establish an infection in a host cell is often called VIRION. It is a fundamental full component of a virus.
<h3>What is a virion?</h3>
A virion can be defined as an entire virus composed of a surface (protein shell) which is called capsid, and the inside nucleic acid.
The core nucleic acid of a virion can be either DNA or RNA (both single and double-strand).
A virion may infect a particular host cell to produce disease.
Learn more about virions here:
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It is A , d , and c . I can bet my last bagel bite
