and are early tetrapods that do not have features unique to fish. Describe how these two species differ anatomically and what that means about where they each lived.

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d

Which one is an advantage of external fertilization a. the offspring are genetically identical to the parents b. more eggs can be fertilzed at one time c. more sperm can be released at one time d. more protection is available for developing plz

Does all the energy stored by the phytoplankton reach the top level of the pyramid