Imagine a very deep lake with multiple species of fish. A phylogeny of the fish shows that they have all descended from a common ancestor. Which type of speciation is the most likely cause of speciation in fishes in this lake

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

What prevents odyssey from killing the sleeping cyclops