5. Sex cells are produced in the human reproductive organs. Which of the following cell to organ pairing is correct?
A. egg cell - ovary
C. sperm cell - ovary
B. egg cell - testes
D. sperm cell - penis
6. What will happen if living things will NOT reproduce anymore?
A. Population will decrease and eventually perish.
B. Organisms will not be improved.
C. Organisms will not survive.
D. Organisms will not be able to adapt to their environment.
7. At what age bracket does puberty usually takes place?
A. between the ages of 6 to 10
C. between the ages 11 to 16
B. between the ages of 9 to 13
D. between the ages 18 to 21
8. Which of the following do both boys and girls experience when they reach the age of puberty?
A. appearance of Adam's apple
C. growth rate increase
B. broadening of the hips
D. more noticeable waistline
9. The following are changes that appear in boys during puberty EXCEPT
A. broadening of shoulders
C. enlargement of genitals
D. pubic and underarm hair appear
B. development of breasts
10. Which of the following occurrences among females signal the start of their reproductive maturity?
C. growth of hair in armpits
A. appearance of pimples
D. onset of menstruation
B. developing a high-pitched voice​