Which statement correctly describes evidence that supports the theory of evolution? a. all known forms of life differ in their genetic makeup. b. all known forms of life share a universal genetic code. c. all known forms of life require oxygen for metabolism. d. all known forms of life depend on each other for survival.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.