It regulates the menstrual cycle, affects the reprise tract, the urinary tract, the heart and blood vessels, bones, breasts, skin, hair mucus membranes, pelvic muscles and the brain
Answer:
They affect chemical reactions by lowering the activation energy, thus speeding up the reactions.
It should be a food web, because there are various producers and consumers, and the bears and humans eat each other
Answer:
D
Explanation:
The cells are from different types of plants
Answer:
Explanation:
Each chromosome represents a twin.like pairs of socks.
This is an analogous problem: you have 2 pairs of socks, one white, one black. Each of the sock is tailored to a specic foot, right or left. How many different ways can the socks be mixed and matched , one for each foot?
Here are the possibilities : left = black, right = black is one such match. Left = white, right = black is another.
so also we will have 23 chromosome pairs
