Asexual reproduction is common in _____.

A. Mammals.
B. Frogs.
C. Fertilization.
D. Bacteria.

http://bugs.bio.usyd.edu.au/learning/resources/CAL/Microconcepts/Reproduction/bacteriaRepro.html

http://education.seattlepi.com/five-examples-organisms-use-asexual-reproduction-5849.html

Thanks! That helped alot! 😃 🙌

The correct answer is D. Bacteria.

To arrive at the correct answer, let's break down the options:

A. Mammals: Mammals reproduce sexually, which involves the union of male and female reproductive cells (sperm and egg) through fertilization.

B. Frogs: Frogs reproduce sexually through a process known as external fertilization, where the female lays eggs and the male releases sperm onto them. This also involves the fusion of male and female reproductive cells.

C. Fertilization: Fertilization is a process that occurs in sexual reproduction, where the male and female gametes (reproductive cells) combine to form a zygote. It is not a type of reproduction in itself.

D. Bacteria: Bacteria commonly reproduce asexually, through a process called binary fission. In binary fission, a single bacterium replicates its DNA and divides into two identical daughter cells. This type of reproduction does not involve the fusion of gametes or the participation of another organism.

Therefore, the correct answer is D. Bacteria, as asexual reproduction is common in this group of organisms.