The energy that powers photosynthesis comes from A. oxygen.

B. water.

C. the sun.

D. chemicals.

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.

How do you date a sample of rock that you suspect as being one of the earliest on earth

What part of the brain is highlighted in the diagram below?