some one celled organisms reproduces by binary fission which is a process of cell division. The answer is 4.
<span>In marine vertebrates, the gill arches use the external gas exchange. The water holds less oxygen.
The ribs in terrestrial vertebrates have enclosed respiratory surface which is inside the body and comes as paired lungs.
Kidneys are efficient in excretion of regulation of water and nitrogenous wastes. Their reproduction is normally sexual with separate sexes.</span>
Answer:
Golgi Body , Chloroplasts , Endoplasmic Reticulum , Mitochondria , and Nucleus
Explanation:
Answer: Density-independent factor
Explanation:
