Answer:
b.
Explanation:
Random forces lead to genetic drift. Sometimes, there can be random fluctuations in the numbers of alleles in a population. These changes in relative allele frequency, called genetic drift, can either increase or decrease by chance over
1. It does this to protect host's cells and keep the virus in the same spot so white blood cells can kill them.
2. Aids are not caused by bacteria because what causes it is a sexual disease.
3. A vaccine is the disease but a weakened form so then the white blood cells can learn how to kill the disease but antibiotics can only slow down the disease so that the white blood cells can kill it.
I hope this helps you.
Answer:
Water is essential for all living things. Water's unique density, high specific heat, cohesion, adhesion, and solvent abilities allow it to support life.This unique structure allows a water molecule to “shake hands” with many other molecules, earning it the moniker “the universal solvent.” This ability is at the heart of many of the functions water performs for living organisms: water delivers dissolved nutrients to cells. water ferries dissolved waste away from cells.
Hopefully that helps you out.
