Reproduction In Vertebrates: Terminology

Question 1

External Fertilisation

Answer 1

The sperm fertilises the egg outside the body of the female, usually in water

Question 2

Internal Fertilisation

Answer 2

The male deposits its sperm inside the reproductive organs of the female and fertilisation occurs inside the female’s reproductive organs

Question 3

Ovipary

Answer 3

Eggs are laid and hatching takes place outside the Mother’s body

Question 4

Vivipary

Answer 4

The young develop inside the uterus of the mother after the eggs are fertilised internally

Question 5

Ovovivipary

Answer 5

Young develop from eggs that are fertilised internally and retained within the mother’s body after fertilisation until they hatch

Question 6

Amniote Egg

Answer 6

Embryo protected by the shell of the egg; egg consists of many extraembryonic membranes that serve different functions

Question 7

Precocial Development

Answer 7

Hatchlings are quite well-developed when they hatch – eyes open, able to move, able to feed. Brain size and intelligence remains the same throughout their lives

Question 8

Altricial Development

Answer 8

Hatchlings are poorly-developed when they hatch. Unable to feed on their own, cannot move. Brain size and intelligence increases a lot after hatching

Question 9

Parental Care

Answer 9

Parental care offered through building of nests, protecting eggs, protecting the young, teaching the young