Homeostasis is maintained by the respiratory system in two ways: gas exchange and regulation of blood pH. Gas exchange is performed by the lungs by eliminating carbon dioxide, a waste product given off by cellular respiration.
The answer to the question is 2
Answer:
Animals: eukaryotes. plants: chloroplast.
Explanation:
animals have eukaryotic cells.
while plants have chloroplast that helps in photosynthesis.