Answer:
Testable prediction that gives direction to research.
Explanation:
A hypothesis is an explanation that can be accepted in a provisional way, but has the objective to provide sufficient guidance for further investigation.
It is also considered testable because it can be proven right or wrong, it means it is possible to be verified.
The answer is <u>"B. type II B fast-twitch muscle fibers that respond quickly and provide her with speed and strength".</u>
Fast-twitch muscles separate into two classes: moderate fast-twitch (type IIa) and fast-twitch (type IIb or IIx). Moderate fast-twitch muscles are thicker, faster to contract, and destroy more quickly than slow-twitch. Fast-twitch, the most ground-breaking and least in continuance, are initiated when the body nears greatest effort.
Here's the means by which it works: During aerobic activities, for example, running or swimming, slow-twitch fibers are the first to contract. At the point when the slow-twitch fibers wind up drained, fast-twitch fibers start to assume control.
Hi I'm only in middle school but i know the answer, its metabolism
if this helped plz thank
