See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
10 questions from this quiz
Completely outside the mother's body
Yolk stored within the egg
Placenta
Ovovivipary and vivipary only
Retained within the female's body
Fish
No, they don't produce traditional eggs
Vivipary
Protection from external predators
Both involve live birth
Select your subjects, and get access to A+ resources today.