What is an effect of cAMP-dependent protein kinase (PKA) inactivation of the liver isozyme but not the muscle isozyme? Phosphate from the dephosphorylation of the liver isozyme is used to generate ATP and provide energy for movement. Under stress (fight-or-flight) conditions, the liver can use glycolysis to break down glucose. Glycolysis is inhibited in the liver, but not muscle, when blood sugar is low. Glycogen synthesis is promoted in the liver as an energy store.

cats ; snakes

the answer is c) an oak tree

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.