Fertilisation (fish & mammals) Flashcards
1
Q
What fertilisation do fish use?
A
External
2
Q
What fertilisation do mammals use?
A
Internal
3
Q
What are the chances of sperm fertilising egg? (Fish)
A
Low chance
4
Q
What are the chances of sperm fertilising egg? (Mammal)
A
High chance
5
Q
What is parental protection like for fish?
A
Little/no parental protection
6
Q
What is parental protection like for mammals?
A
High
7
Q
What are chances of survival like for fish?
A
Poor chance of survival
8
Q
What are chances of survival like for mammals?
A
Good chance of survival
9
Q
What is relative efficiency like for fish?
A
Poor
10
Q
What is relative efficiency like for mammals?
A
Good
11
Q
How many eggs are produced for fish?
A
A lot
