Answer:
A
Explanation:
Because rest and digest allows the body to release stress
Answer:
1. Electrical impulses in the heart cause the muscle to contract.
2. To keep the blood flowing in only one direction
Explanation:
In the first question, the correct answer is ''Electrical impulses in the heart cause the muscle to contract''. Every muscle in our body contracts because of electrical impulses and this is also true for our hearts. Or any hearts in nature that we know of.
In the second question, the answer is ''To keep the blood flowing in only one direction''. We have those valves and without them, we wouldn't be able to function as we do.
I mean they just die nothing happens. Most symtoms are before ,there death.
"This is bad for you. You know what they put in this stuff? Tar. Like the stuff they put on the roads. You want that in your system?"
Answer: Measurement techniques that allow the global analysis of cellular responses while retaining single-cell sensitivity are increasingly needed in order to understand complex and dynamic biological processes.
Explanation: