P5 Science · Chapter 2brightbit.net/worksheets
Life Cycles
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- 1.
What is a life cycle?
(a) The total lifespan of an organism(b) The series of changes an organism goes through from birth to death and reproduction(c) The stages of growth only(d) The process of reproduction
- 2.
What are the four stages of complete metamorphosis in a butterfly?
(a) Egg → Larva → Pupa → Adult(b) Egg → Nymph → Adult(c) Egg → Caterpillar → Butterfly(d) Larva → Pupa → Nymph → Adult
- 3.
Which insect undergoes incomplete metamorphosis?
(a) Butterfly(b) Beetle(c) Grasshopper(d) Housefly
- 4.
What is the difference between complete and incomplete metamorphosis?
- 5.
A frog's life cycle includes which stage that breathes through gills?
(a) Froglet(b) Adult frog(c) Tadpole(d) Egg
- 6.
What is the correct sequence of a mosquito's life cycle?
(a) Egg → Pupa → Larva → Adult(b) Egg → Larva → Pupa → Adult(c) Larva → Egg → Pupa → Adult(d) Egg → Nymph → Adult
- 7.
Why is it important to remove stagnant water to control mosquito populations?
- 8.
The housefly undergoes complete metamorphosis. Which stage does the most damage to food?
(a) Egg(b) Larva (maggot)(c) Pupa(d) Adult
- 9.
Compare the life cycle of a butterfly and a grasshopper. State ONE similarity and ONE difference.
- 10.
A nymph looks similar to the adult of its species. This is a feature of which type of metamorphosis?
(a) Complete metamorphosis(b) Incomplete metamorphosis(c) Both types(d) Neither type
Answer key — P5 Science: Life Cycles
For parents. Step-by-step explanations for every question are free on brightbit.net.
- 1.(b) The series of changes an organism goes through from birth to death and reproduction
- 2.(a) Egg → Larva → Pupa → Adult
- 3.(c) Grasshopper
- 4.Complete metamorphosis has 4 stages (egg, larva, pupa, adult); incomplete has 3 stages (egg, nymph, adult) with no pupal stage
- 5.(c) Tadpole
- 6.(b) Egg → Larva → Pupa → Adult
- 7.Mosquitoes lay eggs in stagnant water and larvae/pupae develop in water; removing it breaks the life cycle
- 8.(b) Larva (maggot)
- 9.Similarity: both start as eggs; Difference: butterfly has a pupal stage (complete metamorphosis) but grasshopper does not (incomplete metamorphosis)
- 10.(b) Incomplete metamorphosis
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