Answer:
The alveolar membrane- is where gas exchange between the blood and the atmosphere takes place. The gas molecules must diffuse across the alveolar epithelium and the capillary endothelium. ... Thus, the alveolar surface (as well as the respiratory bronchioles) have no cilia or mucus layer.
Explanation:
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i believe the answer to be B
Answer:
<u>True</u>
Explanation:
There are <u>two components of efferent/motor nervous system</u>.
1.<u>Autonomic Nervous System</u>
It innervates the<u> smooth muscles, glands and cardiac muscles and is under involuntary control. ANS is further divided into Sympathetic nervous system and parasympathetic nervous system.</u>
It is composed of<u> preganglionic neurons</u> and <u>postganglionic neurons</u>. <u>The axons of preganglionic neurons synapse on the cell bodies of postganglionic neurons. </u>
Autonomic ganglia of sympathetic nervous system form the paravertebral ganglia (long chains on either side of spinal cord) and autonomic ganglia of parasympathetic nervous system are located close to the organ which the fibers innervate.
<u>2. Somatic Nervous system</u>
It is responsible for<u> voluntary control of skeletal muscles and is composed of motor nerve and the innervated muscle.</u>
Mud is the answer.
I hope this helps you! Have a great day :-D
The primary roles done by these biological macromolecules in the biological processes in each organism is that contains substances that are considered as essential for these process and among which in macroscopic sizes are carbohydrates, lipids, proteins and many others.