Which of the following statements is correct with respect to bryophyte development?
a. haploid gametes mate to produce a diploid zygote, which later develops into a protonema.
b. the diploid zygote germinates to give rise to protonema, which later develops into a sporophyte.
c. haploid spores germinate to give rise to protonema, which later develops into a sporophyte.

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.