Answer:
Mutations can create entirely new alleles in a population which changes the allele frequencies of a gene pool.
Answer:
Nutrient-rich blood flows into the liver from the intestines through the hepatic portal vein.
Power of attorney is capable act on behalf of someone when a decision can not be made
Answer:
its a alteration i would go with B
Explanation:
Lavoisier would have taken mercury and heated it up to 350 degrees centigrade in air and then found that a new compound was formed a red or yellow mineral which would be mercury oxide so the experimental observation would be the change in color of the mercury and the formation of a mineral with different properties from pure mercury.
