Answer:
animal since me have them inside us
The answer to your question would be A
True, sleep problems indeed are a quite often occurence among children as well as adults - they do occur quite often but don't necessarily occur all the time for people to whom it does happen. At the same time, when someone suffers from sleep problems, this doesn't necessarily mean that he cannot sleep at all.
The answer, I believe, is A. self esteem can fluctuate depending on circumstances
Answer:
C
Explanation:
The blunde of His is an agruppation of neurons that are localized on the ventrical walls of the heart. It's mision is to transmit the nervous signals that come from the sinoatrial node that is located on the left atria of the heart, to the muscles that form the vertix of this organ, making them contract.
The answer is C: a collection of heart muscle component specializing in electrical conduction that allow the ventricles to contract.