Answer:
C
Explanation:
Alveoli are tiny functioning structures that compose your lungs. They help with respiration. They have a large total surface area, which is very useful for respiration. The more surface area there is, the more transactions can happen. Which means that breathing will be easier/faster when you have more alveoli. (Please rate this answer if you have time!)
Answer:
2.1 cm
Explanation:
The general equation for the graph is:
y = A cos(ωt + ∅)
A: amplitude, is the maximum and minimum value for y(t)
C is the slowest of the runners, but starts at a position ahead of A and B when the starting gun is fired, so C is in the lead for a while.
A and B both start from the starting line when the starting gun is fired. A is faster than B. So A is the first to pass C, and A stays in the lead after that.
After a short while, B also passes C.
After that, C remains last on the track.