They are used for them to adapt to the environment
Change in temperature and air pressure. The primary cause of it is air pressure. Air will naturally flow from areas of high pressure to low pressure.
Answer:
B an animal that can live in fresh water
Answer:
The pulmonary artery carries oxygenated blood from the right ventricle to the lungs. The blood here passes through capillaries adjacent to alveolar and becomes oxygenated as part of the process of respiration. In contrast to the pulmonary arteries, the bronchial arteries supply nutrition to the lungs themselves.
Explanation:
Adjustment knobs are used to focus light in a light microscope
