The central part of the Earth below the mantle

The different forms of a gene for a given trait are called .

The graph shows the populations of two species in a particular region over two decades. based on the graph, what can you conclude about the relationship between the two species? a. the two species have a parasitic relationship. b. the two species are mutualistic in nature. c. the two species exhibit commensalism. d. the two species have a prey-predator relationship. e. the two species have a familial relationship.

"what factors influence the absorption of sunlight at earth's surface? "