Alveolar walls are thin to enable the quick passage of oxygen in and out of the lungs. The lungs works hand-in-hand with the heart and also is responsible in converting blood that's de-oxygenated into an oxygenated blood that is usable by the organ systems of the body. The alveolar walls are also designed to have thin membranes so that it can expand and constrict quickly allowing us to breather properly.
Answer:The Correct answer is D
Explanation: The Autonomic Nervous System is that part of Peripheral Nervous System that consists of motor neurons that controls the internal organs. The autonomic system controls muscles in the heart, the smooth muscle in internal organs such as the intestine, bladder, and uterus.
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Answer:
A) All know living things are up of one or more cells
Explanation:
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It helps you follow procedures accurately in order to get higher, more accurate results and become a better medical professional
The three steps in the process of dna replication are initiation, elongation, and termination.
