Lichens are a mix of two organisms—a fungus and an alga. the alga, by virtue of its ability to carry out photosynthesis, provides food for the fungus. the fungus, in turn, protects the alga by forming a covering over it. what kind of an interaction is being exhibited by the fungus and the alga?

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.

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.

Which blood cell spend most of their time in the lymphatic system?