What is the function of our ecosystem? Environmental Issues: Select the best answer from the choices provided.
A.
It shields the Earth from the sun's UV rays.
B.
It breaks down and absorbs pollution.
C.
It increases oxygen in the atmosphere.
D.
It increases temperature in the summer and decreases temperature in the winter.

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13