Cells
A) are the basic units of life
B) usually do not have DNA
C) only have a nucleus and no cytoplasm
D) are only inherited from one parent
E) originated on earth approximately 5 million years ago

Question

Quizplus · Accepted Answer

Cells are the fundamental unit of life. All living organisms are composed of cells, which can either be single-celled or multicellular. They are responsible for the basic functions of life, including growth, reproduction, and the maintenance of homeostasis.

B, C, and D are incorrect. Cells always have DNA and are composed of both a nucleus and cytoplasm. They are inherited from both parents in sexually reproducing organisms.

E is also incorrect. Cells originated on Earth more than 3 billion years ago, not 5 million years ago.