Answer:
Other phagocytes are recruited to the scratch site by cytokines secreted by the initial phagocyte.
Answer:
Option A
Explanation:
In this case, there are two varieties of horses: Domestic horses that are raised and bred by humans and Wild horses that lives in the wild. The issue of varieties in coat colour of domestic horses can be explained as what occured by selective breeding, also known as artificial selection which is a technique by which humans develop new offsprings with desirable and suitable characteristics. These breeders select two parents that possess beneficial phenotypic traits to mate, producing offsprings with those desired traits such as strength and also for coat colour as stated.
Since the rate of growth is still positive, there are still people being born and added to the population which is why the global human population is increasing. The speed at which it is increasing decreases though, but the population is still technically growing.
Assuming Complete Dominance, Only 1 copy of a Dominant allele of a specific trait is needed to exhibit that trait.