True - they become pregnant after having sex. (Sexual reproduction)
All vertebrates reproduce sexually. Birds are one of the main groups of vertebrates, so they reproduce sexually.
No. Amphibians reproduce sexually, as all vertebrates do.
No they don't; lions reproduce sexually, just like all other vertebrates.
All mammals reproduce sexually. Pretty much all vertebrates (fish, birds, mammals, reptiles, amphibians) reproduce sexually. Only some bacteria, some plants, fungi reproduce asexually.
No, they reproduce sexually like everybody else
No. Many organisms including most vertebrates reproduce sexually.
The development of an amniotic egg and internal fertilization allowed vertebrates to reproduce away from water.
Mosquitos reproduce sexually.
A) true
Sexually of course.
Birds reproduce sexually.
bunnies reproduce sexually