15. How does a mother's age affect the likelihood of her having a baby with Down syndrome? A. The likelihood increases substantially after age 40.
b
The likelihood decreases substantially after age 40.
C. Age has no effect.

d The likelihood increases at first, then decreases after age 20.

Explain the side effects of cancer treatments

3what is the range of the function shownin the graph? ucation solutionsnw novo-9-8-7 -6 -5 -4 -3 -2 -1123456789

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.