A non random influence affecting who survives or reproduces
is selective pressure. A selective pressure is considered to be a phenomenon in
which behaviors of the living organisms are being driven to evolution and the
natural selection in which they are also divided in to two types.
D. Bacteria because “bacteria” is actually a domain itself
Answer;
- large-scale changes in chromosome structure
Explanation;
-Alterations to chromosome structure or changes in the number of copies of chromosomes in a cell.
-Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Mutation is important as the first step of evolution because it creates a new DNA sequence for a particular gene, creating a new allele.
Answer:
cardiovascular
Explanation:
Through vasodilatation or vasoconstriction in the skin heat exchanges with the outside can be regulated. For example during vasodilatation more blood flows, so the tissue will be warmer and more heat will be lost.
ATP binding (ATP gated) IS NOT a mechanism to control the opening and closing of ion channels (Option a).
ATP-gated channels are membrane channel proteins that open in response to binding ATP.
These channels require energy in the form of ATP to open and thus allow the passage of ions/molecules across biological membranes.
For example, the P2X7 receptor is an ATP-gated channel that mediates apoptosis (programmed cell death) of immune cells.
In conclusion, ATP binding (ATP gated) IS NOT a mechanism to control the opening and closing of ion channels (Option a).
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