P5 Science · Chapter 4brightbit.net/worksheets
Reproduction in Animals
Name: ______________________Class: ________Date: ____________Score: ____ / 10
- 1.
What is the difference between sexual and asexual reproduction?
(a) Sexual reproduction involves one parent; asexual involves two(b) Sexual reproduction involves two parents and fertilisation; asexual involves one parent and no fertilisation(c) Both are exactly the same(d) Asexual reproduction only occurs in animals
- 2.
Which of the following animals gives birth to live young?
(a) Crocodile(b) Salmon(c) Dolphin(d) Chicken
- 3.
What is internal fertilisation?
(a) Fertilisation that occurs outside the female's body(b) Fertilisation that occurs inside the female's body(c) Fertilisation by wind(d) Fertilisation without any sex cells
- 4.
Frogs carry out external fertilisation. What does this mean?
- 5.
Which of the following is an advantage of internal fertilisation over external fertilisation?
(a) More offspring are produced(b) The embryo is better protected(c) It requires more water(d) It is simpler
- 6.
Why do fish that use external fertilisation produce very large numbers of eggs?
- 7.
A shark gives birth to live young after internal fertilisation. What type of reproduction is this?
(a) Oviparous with internal fertilisation(b) Viviparous with internal fertilisation(c) Oviparous with external fertilisation(d) Asexual reproduction
- 8.
Birds lay eggs after internal fertilisation. The eggs have a hard shell. What is the function of the hard shell?
- 9.
What is asexual reproduction? Give ONE example.
- 10.
Why are mammals generally better at caring for their young compared to fish?
(a) Mammals produce more offspring(b) Mammals use external fertilisation(c) Mammals give birth to live young and nurse them with milk(d) Fish lay eggs on land
Answer key — P5 Science: Reproduction in Animals
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- 1.(b) Sexual reproduction involves two parents and fertilisation; asexual involves one parent and no fertilisation
- 2.(c) Dolphin
- 3.(b) Fertilisation that occurs inside the female's body
- 4.The egg and sperm meet and fuse outside the female's body, usually in water
- 5.(b) The embryo is better protected
- 6.Because many eggs and embryos are lost to predators and environmental conditions; large numbers ensure some survive to adulthood
- 7.(b) Viviparous with internal fertilisation
- 8.The hard shell protects the developing embryo from physical damage and prevents it from drying out
- 9.Reproduction involving only one parent, producing offspring genetically identical to the parent; e.g. budding in hydra, binary fission in amoeba
- 10.(c) Mammals give birth to live young and nurse them with milk
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