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in the image above of an alveolus, what is the identity of the two visible tissue layers labeled c and d.

a. c = inner wall of alveolar sac; d = outer wall of alveolar sac
b. c = inner wall of alveolar sac; d = outer capillary wall
c. c = outer wall of alveolar sac; d = outer capillary wall
d. c = inner capillary wall; d = outer capillary wall

Many dentist offices prefer i appreciate cherries because the use of these trays or what

Antibiotics are given when an std is caused by a virus. true or false

At school, there have been a lot of rumors going around about how certain sexually transmitted diseases are spread. which skill would be most valuable to you take the necessary steps to learn what you need to know to protect yourself? a. self-direction b. critical thinking c. problem solving d. effective communication       select the best answer from the choices provided.