It's the nucleus since it contains all the information of the cell. The ER only "packages" and send the protein to the Golgi Body.
Mutations <u>can</u><u> </u><u>not</u><u> </u><u>be</u><u> </u><u>passed</u><u> </u><u>down</u><u> </u><u>to</u><u> </u><u>offspring</u> unless the mutation occurs in the sex cells.
A) weapons for an evolutionary arms race w/ disease causing organisms
Molecular homology, because it compares dna
Answer:
The reason the compressed air gets cold after being used is due to a process known as adiabatic cooling, a property of thermodynamics. A gas, initially at high pressure, cools significantly when that pressure is released. The compression needed to turn a gas to liquid allows a large amount of gas to fit in a relatively small space, and when that gas is released to a large space, it rapidly expands to fill the space.
