Hii! I believe the answer is A. human society. (:
Understanding the evolution of HIV in an individual will help scientist understand how the virus responds to different drug regimes and will lead to better treatments
False, background checks are mandatory to obtain a gun. but if your record says that you've had a federal offence before then no you will not be allowed to obtain a firearm
Answer:
The suns atmosphere is composed of many layers. The outer ones are the photosphere, the chromosphere and the corona. That is where the sun's energy (light and heat) goes up from the core.
Explanation:
Because the heart is forced to pump out blood. In the upper right side of the heart is an bundle of cells called the sinoatrial node. Unlike any other cell in the body, these cells (nicknamed "pacemakers") keep sending out electrical impulses, more than once a second, to make the rest of the heart contract and pump out blood.
hope this helps!
