Answer:
The environment in which these predator/prey species exist has a specific carrying capacity. The prey species has to add the number of prey individuals equal to the number of prey individuals that have been removed by the predator. If they cannot maintain this balance, then both the species will become extinct.
Explanation:
Unlike red blood cells, white blood cells can live for many years.
Answer:
Genetic variation is caused by:
mutation
random mating between organisms
random fertilization
crossing over (or recombination) between
chromatids of homologous chromosomes during
meiosis
Answer:
I think that it is mate selection though not sure
