The answer is that <span>all
veins carry blood back to the heart, except for the pulmonary vein. the
vena cava empty into the right side of the heart, so they technically
bring blood to the
</span>main atrium.
Answer:
i think it is.. a mass of cancer cells
Explanation:
Mechanisms of evolution correspond to violations of different Hardy-Weinberg assumptions. They are: mutation, non-random mating, gene flow, finite population size (genetic drift), and natural selection.
Answer: in the atom you can find: electrons and protons
Explanation:
You can find electrons in an atom because it is the negative energy that rounds the atom on the outside’s part.
Then, the protons are the positive energy that is on the atom’s inside.
Both of the energies are fused and it end on a neutron energy.
Crude oil: Through drilling wells
Coal: Through surface and underground mining
Natural gas: Through hydraulic fracturing
