In a cladogram, what represents the most recent common ancestor shared by a clade? a. a mark by the clade's derived character
b. the overlapping of one clade upon another
c. the longest branch
d. the node where branches meet

Explain why the plants cortex would serve as the best food source for animals

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

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?