This is a regulation of the internal environment of an organism definition

What percentage of light hits earth's surface directly?

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

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?