A structural adaption is the physical features of an organism, or some can be behavioral. With that said, your answer will be D.) A mouse has long whiskers that are used to detect temperature changes.
Search it on google search respiratory system it’ll show up
Answer:
Pressure with Height: pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.In addition, gravity is weaker at the equator due to centrifugal forces produced by the planet's rotation. It's also weaker at higher altitudes, further from Earth's centre, such as at the summit of Mount Everest
<span>if i remeber correctly it should be B. but im not so sure on this one</span>