P3 Science · Chapter 11brightbit.net/worksheets
Life Cycles of Animals
Name: ______________________Class: ________Date: ____________Score: ____ / 10
- 1.
What is a life cycle?
(a) The stages an organism goes through from birth to death and reproduction(b) The food an animal eats throughout its life(c) The places an animal lives(d) The number of offspring an animal produces
- 2.
A butterfly goes through four stages in its life cycle. What is the correct order?
(a) Egg → larva (caterpillar) → pupa (chrysalis) → adult butterfly(b) Egg → pupa → larva → adult(c) Larva → egg → pupa → adult(d) Egg → adult → pupa → larva
- 3.
A frog undergoes incomplete metamorphosis. Which sequence is correct?
(a) Egg → tadpole → young frog → adult frog(b) Egg → adult → tadpole → young frog(c) Tadpole → egg → adult → young frog(d) Egg → pupa → tadpole → adult frog
- 4.
Which type of metamorphosis involves a pupal stage?
(a) Complete metamorphosis(b) Incomplete metamorphosis(c) Direct development(d) Asexual reproduction
- 5.
A cockroach life cycle is: Egg → nymph → adult. This is an example of:
(a) Incomplete metamorphosis(b) Complete metamorphosis(c) Direct development(d) Budding
- 6.
In which stage of a butterfly's life cycle does the most eating and growing occur?
(a) Larva (caterpillar)(b) Egg(c) Pupa (chrysalis)(d) Adult butterfly
- 7.
What happens inside the pupa (chrysalis) of a butterfly?
(a) The larva transforms into an adult butterfly(b) The egg hatches into a larva(c) The adult butterfly rests(d) The butterfly lays eggs
- 8.
Mosquitoes breed in stagnant water. Which stage of the mosquito's life cycle lives in water?
(a) Egg, larva and pupa(b) Only the adult(c) Only the egg(d) Only the larva
- 9.
Give ONE reason why it is important to understand the life cycle of a mosquito.
- 10.
Humans are said to undergo 'direct development'. This means:
(a) The young look like small adults with no dramatic change in body form(b) Humans go through a pupal stage(c) Human babies look completely different from adults(d) Humans reproduce by laying eggs
Answer key — P3 Science: Life Cycles of Animals
For parents. Step-by-step explanations for every question are free on brightbit.net.
- 1.(a) The stages an organism goes through from birth to death and reproduction
- 2.(a) Egg → larva (caterpillar) → pupa (chrysalis) → adult butterfly
- 3.(a) Egg → tadpole → young frog → adult frog
- 4.(a) Complete metamorphosis
- 5.(a) Incomplete metamorphosis
- 6.(a) Larva (caterpillar)
- 7.(a) The larva transforms into an adult butterfly
- 8.(a) Egg, larva and pupa
- 9.To know which stage to target to control mosquito populations and prevent disease
- 10.(a) The young look like small adults with no dramatic change in body form
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