<span>Surfactant, which is a mixture of fatty lipids and proteins are secreted by alveolar type II cells that line the perimeter of the inside of our empty alveolar space and aids in the movement of air and liquids that go in and out of the lungs. These cells may line other vital organs to protect it against outside wear and tear and keep the tissue inside our bodies intact making bodily functions working more smoothly.</span>
Answer:d Option C.
Bundles of axons that share common origins, destinations and functions.
Explanation:
White matter is an important component of the spinal cord and brain that form the nervous system. It is composed of myelinated axons and they connect grey matter of the brain to each other and also carry nerve impulses or signals to the neurons. The white matter has myelin, a fatty substance that surrond the axon and this is provide electrical insulation.
D cancer cells and normal cells both grow rapidly
<span>The food chain describes who eats whom in the wild. Every living thing—from one-celled algae to giant blue whales—needs food to survive. Each food chain is a possible pathway that energy and nutrients can follow through the ecosystem.</span>
