Answer:
The endocrine system is a tightly regulated system that keeps the hormones and their effects at just the right level. One way this is achieved is through 'feedback loops'. The release of hormones is regulated by other hormones, proteins or neuronal signals. The released hormone then has its effect on other organs.
Explanation:
Answers:
1. True
2. True
Explanation:
"Muscle hypertrophy" refers to the increase in the size of the muscles. A context clue here is the word "hypertrophy." The prefix "hyper" means<em> "over"</em> or <em>"exaggerated.</em>" This is synonymous to the word<u> "growth."</u> Thus, this explains the answer.
Muscle contraction comes in two forms: isotonic and isometric. Isotonic means that the muscle has a sustained tension as it grows or changes. Isometric means that the muscle contracts without any change in its length. So, this makes the statement true.
ANSWER: The heart is the key organ in the circulatory system
I’m pretty sure it’s virus