Which of the following fossil discoveries best demonstrates a change in the earth's climate? a. scientists find a large amount of fossils of tropical plants and animals in a desert. b. scientists discover fossils of straight teeth buried below fossils of curved teeth. c. scientists discover a large amount of fossils of marine life near the shore. d. scientists find an area that contains a variety of plant fossils but no animal fossils.

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.