The energy source for the synthesis of carbohydrates in the calvin cycle is
a. atp only.
b. photons.
c. energized chlorophyll a.
d. nadph + h+.
e. nadph and atp.

We want most cells to be even in and out which is called

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

92 sathe best for the question 11. most animals and plants reproduce sexually. this means that dna is passed down to new organisms from two parental organisms. which of the following is a key advantage of sexual reproduction?