Which statement best describes a source of new genetic variations in a species? A. Asexual reproduction produces many offspring with a successful set of genes. B. Sexual reproduction results in offspring that each have a unique set of genes.
C. Lifelong leaming helps offspring with the same parents have different skills.
D. Limited resources cause some offspring to survive longer than others,

B. Sexual reproduction results in offspring that each have a unique set of genes.

Explanation:

New genetic variation arises in a species as a result of sexual reproduction which results in offspring having a unique set of genes.

it is the most commonly accepted one

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.