ovipary, ovovivipary and vivipary

Question 1

Ovi’s

Answer 1

• moment future offspring separate from parent
• embryo develops
• nourishment

Question 2

ovipary

Answer 2

• eggs develop outside parent
• possible external fertilisation
• egg yolk and shell

Question 3

how does ovipary aquatic environments maximis reproduction?

Answer 3

• vast number of eggs
• less energy needed for yolk production
• less parental care

Question 4

how does ovipary in land environments maximise reproduction?

Answer 4

• very few eggs
• more nutrients in eggs
• protection, incubation
• parental care
• shell

Question 5

ovovivipary

Answer 5

• eggs fertilised and kept in female until hatched
• not dependant on mother (yolk)
• ragged tooth shark

Question 6

how does ovovivipary maximise reproduction?

Answer 6

• fewer eggs
• less energy
• less vulnerable to predation
• temperature homeostasis
• born fully developed

Question 7

vivipary

Answer 7

• internal fertilisation
• no shell
• develop as foetus inside mother
• nourished through placenta (eutherians)

Question 8

how does vivipary maximise reproduction?

Answer 8

• nourishment
• protection
• parental care
• hammerhead shark