Fertilization+&+Reproduction

Q1.Describe internald external fertilization. A1.Internal fertilization is when the eggs are fertilized inside the body. External fertilization is when eggs are fertilized outside of the body.Another thing that is different about internal and external fertilization is,they have different ways of having their babies. Ex.of Internal Fertilization Animals:Reptiles,Birds & Mammals,extecpt for crocdiles Ex.of External Fertilization Animals:Fish & Amphibans Q2. Include which type of fertilization each Vertebrate group uses. A2.Fish use External Fertalization- Amphibians use Internal Fertilization- Reptiles use External Fertilization- Mammals use Enternal Fertilization. Q3. Describe specilized reproductive anatomy that is different vertibrate groups. nonvertibrates have a sex organ celled a cloaca males and females have these.Fish have an opening behind the anus that the sperm, and egg are released out of Amphibians reprodose with the cloaca.Male and female A mphibians all have this. Reptiles lay eggs they protect the eggs with a shell. The shell also helps keep the yolks at the right tempature.Birds lay eggs also. They lay their eggs in a hest it protects the egg because it is in a tree and that keeps preditors away from the eggs. The birds sit on the eggs to keep them warm.Mammals reproduce through the private teh eggs are kept in the uterus, and they are born alive. Q4.Describe courtship rituals that eacch vertebrate group possesses. Fish;