Which of the following statements is true? plants need chlorophyll to make food. carbon dioxide is a by-product of photosynthesis. photosynthesis only happens in plant leaves. animal cells are able to make their own food.

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

If a checkpoint detects damaged dna, the checkpoint may