1. a)How does the sperm come in contact with frog eggs?
b)The sperm is placed on top of the eggs
c)The sperm is carried through a reproductive system
d)The sperm is carried to eggs via water

2. Where do mammal babies develop?
a)Inside the father
b)In an egg underground
c)Inside an egg above ground
d)Inside the mother

1. When a sperm cell and egg cell join together what is it called?
a)baby
b)sperm
c)Zygote
d)Gamete