The inheritance of skin color genes is polygenic, meaning that many different genes are inherited and none are dominant, but rather they all work together to create a special blend of genes that you have. This is also influenced by environmental factors such as exposure to sun and similar.
Human skin color is a polygenic trait, which means that multiple gene loci are involved in its expression. It has been shown that there more than 350 genetic loci involved in determining skin color. Because of that, there is the enormous number of possible genotypes for the skin color and as a result, the phenotypes vary from the darkest brown to the lightest hues. Different populations have different allele frequencies of genes for human skin color, and the combination of these allele variations brings about complex and continuous variation in skin coloration. Natural skin color can change due to exposure to sunlight (becomes darker) and that is the way it adapts to intense sunlight irradiation (protection against the UV exposure).
MARK AS BRAINLIEST IF IT HELPED
The correct answers are B. They do not have natural predators to regulate their population growth and E. They compete with native organisms for resources.
Explanation:
Nonnative species include any species that does not belong to an ecosystem but was introduced to it. Nonnative species are considered are an important threat to biodiversity and native species because they usually disrupt the natural equilibrium in the ecosystem.
This usually occurs because nonnative species population grow rapidly due to the lack of natural predators; for example, Asian carps which are native from Asia and were taken to the U.S. are eaten by other fish and animals in their native ecosystem, but once they are introduced in another ecosystem their population increases due to lack of predators. Additionally, nonnative species often compete with native species for resources, this also happens with the Asian carp that competes for food such as snails or mussels with native species in the U.S.
A
condition in which endometrial tissue escapes the uterus and becomes attached
to other structures in the pelvic cavity is known as endometriosis.
<span>The
main symptoms of this condition are pelvic pain and infertility. Some of the
causes may be r<span>etrograde menstruation, embryonic
cell transformation via hormones, immune system disorder, surgical scar
implantation and others.</span></span>
1/ leaves because its fall 2/ idkk stop being lazy :)
A very acidic level is 0 on the pH level. and a very basic pH level is 14. 7 on the pH scale is neutral. Anything lower than 7 is acidic, and anything higher than 7 is basic.