The answer would be water.
Answer:
A niche is a way that a population uses the living and nonliving resources of its habitat.
Explanation:
A niche is the role a population has in it's habitat, and the second option is the best one that matches.
The Hardy – Weinberg principle
has seven conditions that should occur in the evolution of the population. One
is when mutation does not happen. Two, is when natural selection is not
occurring. Three, if the population is infinitely large. Four, if all the
members of the population produce offspring.
Five, sexual intercourse is random. Six, the population will produce the
same number of offspring. And lastly, the population does not migrate from one
place into the other. The thing that would disrupt the genetic equilibrium is
the mutation.
Im tired
help plants keep growing
The measure of variation which exists in the genetic makeup of any particular individual within a population is genetic variation. There are several key features and advantages associated with the genetic variation as it is an important factor causing evolution allowing natural selection thus leading to increase or decrease the frequency of alleles in a population.
The other factors causing genetic variation include random mating, mutation, random fertilization and recombination during meiosis between the homologous chromosomes.
The main advantage of genetic variation is it enables the individuals to adapt to environment as well as maintaining the survival of the population.
Based on the information on genetic variation we can conclude whether there is increase or decrease in the genetic variation of the population in the gene pool.
• A zebra migrates to join a different herd of zebras- Increase
• Competition for sunlight leads to taller trees- Decrease
• The DNA of a snake changes to make its venom stronger- Increase
• A grass-fire randomly sweeps through a population of buffalo and kills most of the animals- Decrease
