8. The two changes of matter that undergo, help and determine the best
way to manage the materials and minimize waste.
A. Heat and Light
C. Useful and Harmful
B. Combustion and Rusting D. Physical and Chemical

9. What male reproductive organ produces testosterone??
A. Testes
B. Penis
C. Glans

10. What male reproductive part protects the testes?
A. Epididymis
B. Scrotum
C. Penis
D. Vas deferens

11. Which of the following is NOT a function of the female reproductive
system?
D. Urethra
A. Produces egg cells.
C. Protects the testes.
B. Transport egg cells.
D. Provides a place for fertilization.

12. Which of the following organs expand to allow the passage of the
baby to the vagina?
WA
C. Ovary
D. Cervix
A. Vagina
B. Fallopian tube

13. What is true about menstruation?
A. Occurs once a month
B. Occurs once a week
C. Occurs once a day
STD. Occurs once a year​