Without genetic variation there would not be evolution. genetic variation sometimes is a result of a change in the environment. some variation occurs to help the animal better survive in their habitat. maybe there was a disruption in their ecosystem and their species will become vulnerable unless they change somehow
Hi
There is an enzyme called amylase which is present is saliva and helps in the breaks down carbohydrates present in our food thereby converting it to glucose. When the glucose reach in body’s small intestines, there are some air ball like structures called microvilli that absorb the glucose the into the bloodstream.
This glucose present in bloodstream triggers the beta cells present in the pancreas and stimulate the production insulin. As we know that, the diabetes in actual is the lack of insulin receptors or insulin. However, if there is glucose in the blood but enough amount of insulin is not present, it will limit the uptake of glucose and instead a part of kidney called glomerulus will take the glucose from blood stream. The kidney will ultimately filter out this glucose when the person will urinate. This causes wastage of body’s glucose and also causes organ and tissue damage to the person suffering from it.
Hope it help! :)
Hey there!
The skin and nervous tissues develop from the ectoderm.
Answer:
Heterojunction or having two identical alleles of the same gene.
Explanation:
A heterojunction is an interface that occurs between two layers or regions of dissimilar semiconductors. These semiconducting materials have unequal band gaps as opposed to a homojunction. It is often advantageous to engineer the electronic energy bands in many solid-state device applications, including semiconductor lasers, solar cells and transistors. The combination of multiple heterojunctions together in a device is called a heterostructure, although the two terms are commonly used interchangeably. The requirement that each material be a semiconductor with unequal band gaps is somewhat loose, especially on small length scales, where electronic properties depend on spatial properties. A more modern definition of heterojunction is the interface between any two solid-state materials, including crystalline and amorphous structures of metallic, insulating, fast ion conductor and semiconducting materials.
D is the answer because the rest ate observations
