Answer:natural selection Genetic direction and gene flow
Explanation: I was just Researching this topic
Researching this topic
Answer:
Carrier proteins are involved in facilitated diffusion and active transport of substances out of or into the cell (e.g. diffusion of sugars, amino acids and nucleosides, uptake of glucose, transportation of salts, glucose, amino acids, etc.).
Explanation:
.....estrogen and progesterone are low
In women, menstrual flow occurs
as a result of the actions of some hormone between the pituitary gland in the
brain and the ovaries. Female sex hormones prepare the body for fertilization
every month and without fertilization there is menstrual flow. Menstruation is activated
by reduced levels of the hormones estrogen and progesterone at the end of the
previous menstrual flow.
