Horses and tapirs have a common ancestor, but they now look very different from one another. horses are now grassland animals adapted for grazing on grass and shrubs. tapirs are jungle animals that live in dense forests and eat fruit, leaves, and aquatic vegetation. which of the following led to the development of such differences in the two species?
a. selective breeding
b. convergent evolution
c. dna hybridization
d. natural selection

How does an angiosperm prevent self pollination

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.

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems