Which of the following animals has one cell

A amoeba
B goat
C cow
D rabbit

A amoeba

The animal that has only one cell is A) amoeba.

The animal that has only one cell among the options given is the amoeba (option A).

Amoebas are single-celled organisms classified as protists. They belong to the phylum Amoebozoa. Amoebas have a simple structure, consisting of a cell membrane that surrounds a nucleus and other organelles.

To find the answer to this question, you can eliminate the other options and focus on understanding the characteristics of each animal. In this case, a goat, cow, and rabbit are all multicellular animals, which means they are composed of multiple cells organized into tissues, organs, and organ systems. However, an amoeba is a single-celled organism, making it the only correct answer in this scenario.