Whats A Controlled Experiment? Whats A Controlled Experiment? Like what the definition is please!

How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.

What are the three different shapes or structures shapes or structure of carbon-based molecules?

Can yall plz me on this question im having a hard time think about it