Q: What kind of fertilization do birds have?


Read this paragraph and choose the correct option from the provided answers:

Birds reproduce sexually and have internal fertilization. Mating is generally preceded by courtship. Their amniotic eggs have hard shells and are laid in a nest. The eggs are usually incubated until they hatch. Most species have a relatively long period of parental care.

 Choices:

- deep fertilization

- asexual

- sensitive fertilization

- internal fertilization


A:
internal fertilization