Reproduction in Animals

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By: ctc_2k (45 month(s) ago)

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Reproduction in Animals : 

Reproduction in Animals

Objectives : 

Objectives To understand external and internal fertilisation

How do animal reproduce : 

How do animal reproduce Cell division More complex animals use sexual reproduction. This needs a male to produce sperm and a female to produce eggs

What about more complex animals: fish : 

What about more complex animals: fish External Female lays eggs then male releases sperm over the eggs

Frogs : 

Frogs Male grasps female. She releases eggs and then male releases sperm – needs water like fish

Mammals : 

Mammals

Other factors : 

Other factors Egg guarding or parental care Gestation period Number of young Survival rates