Good Answer =Brainliest , 1 Hearth

Excellent answer with explain=5 Star
Excellent answer without explain=4 Star
Excellent answer but wrong spelling=3 Star

Bad Answer =Report

11. When The sperm cell and egg cell are joined together to form a unit, it is called________.

A. Embryo
B. Fertilization
C. Reproduction
D. Zygote

12. Another term used for sex cells is_______.

A. Embryo
B. Gametes
C. Ovary
D. Zygotes

13. The time between the laying of egg until it's hatching of the new one is called_______.

A. Incubation
B. Gestation
C. Pregnancy
D. Sexual​