Darwin reasoned that natural selection had been the reason for organisms matching so well to their environments.
The correct answer is A.
It starts with a hypothesis, which is basically and educated guess.
Then it goes to a theory, which is proven with a bunch of data.
Then it goes to scientific law, which is when the theory works with centuries of data. Not even scientific laws are guaranteed to be true though.
The variation that involves contracting each muscle group repeatedly with progressively less tension with each contraction is incremental muscle relaxation.
<h3>What is incremental muscle relaxation?</h3>
Incremental muscle relaxation is a type of variation during a physical exercise aimed at relaxing the muscles.
Incremental muscle relaxation is a fundamental component in any training exercise program.
Incremental muscle relaxation consists of relaxing certain groups of muscle fibers that have undergone rhythmic contractions.
Learn more about incremental muscle relaxation here:
brainly.com/question/731531
I'm pretty sure this is true. Don't quote me on that lol.
Energy<span> is made from the </span>ATP molecule<span> to </span>do<span> work in the </span>cell<span> by a reaction that removes one of the phosphate-oxygen groups, leaving adenosine diphosphate (ADP). When the </span>ATP<span> converts to ADP, the </span>ATP<span> is said to be spent.</span>