Which of the following describes fertilization
A, when a sperm cell and egg cell come together
B. The process of pollen moving from place to place.
C. When an animal is attracted to a flower.
D. Changes that occur organisms overtime
A, when a sperm cell and egg cell come together
The correct answer is A, when a sperm cell and egg cell come together. Fertilization refers to the process in which a sperm cell and an egg cell combine to form a zygote, which develops into a new individual.
The correct answer is A. Fertilization is the process in which a sperm cell and an egg cell come together to initiate the development of a new organism.
To arrive at this answer, you can eliminate the other options through a process of elimination:
B. The process of pollen moving from place to place (pollination) describes a step in the plant reproduction process, but not fertilization itself. Pollination is the transfer of pollen from the male reproductive part (anther) of a plant to the female reproductive part (stigma) of another plant.
C. When an animal is attracted to a flower (animal pollination) is related to pollination, not fertilization. Some flowers attract animals with nectar or bright colors to facilitate the movement of pollen from one flower to another.
D. Changes that occur in organisms over time (evolution) are unrelated to fertilization. Evolution refers to the cumulative changes in the heritable characteristics of a population over successive generations.
By process of elimination, you can determine that option A, the combination of a sperm cell and an egg cell, best describes fertilization.