Identify two mechanisms of recombination that take place during meiosis. Explain how each contributes to an increase in the genetic variation of a population.

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

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis