What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers? * a population
food chain
an ecosystem
food web

Compare the composition of the moon's surface with the composition of the earth's surface.

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b.organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.