Which of the following scenarios exhibit artificial selection? Select all that apply.

A. A farmer crossing a tree that produces large apples with a tree that produces sweet apples in an effort to create future offspring that are both large and sweet.

B. A farmer replanting the same seeds each year in order to limit variance within his crop.

C. A dog breeder breeding a labrador retriever, with a poodle in order to create breed of dog that has the temperment of a lab and the hypoallergenic coat of a poodle.

D. A domestic dog runs away and takes a mate in a nearby pack of coyotes. their offspring have a mix of dog and coyote characteristics.

The answer might be A or C. I hope this helps.

Explanation:

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.