Science question 1 what are the criteria for a good scientific question? question 2 how do you formulate a good hypothesis?

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

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 substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water