The Calvin Cycle:. a. is a cyclic pathway that produces three carbon molecules from CO 2.
b. is a linear pathway that produces three carbon molecules from CO 2.
c. is a cyclic pathway that produces ATP and NADPH.
d. is a linear pathway that produces ATP and NADPH.

Organisms within a population must compete for resources to survive

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm