Life Cycles of Animals — Answer Key
Part A: Multiple Choice
Circle the correct answer for each question.
1. How many stages does a butterfly's life cycle have?
A) 2
B) 3
C) 4
D) 5
A butterfly's life cycle has four stages: egg, caterpillar (larva), chrysalis (pupa), and adult butterfly.
2. Which animal goes through incomplete metamorphosis?
A) Butterfly
B) Grasshopper
C) Frog
D) Salmon
A grasshopper goes through incomplete metamorphosis because it has only three stages (egg, nymph, adult) and does not have a pupa stage.
3. What is the correct order of a butterfly's life cycle?
A) Egg, chrysalis, caterpillar, butterfly
B) Caterpillar, egg, chrysalis, butterfly
C) Egg, caterpillar, chrysalis, butterfly
D) Chrysalis, egg, caterpillar, butterfly
The correct order is egg, caterpillar, chrysalis, butterfly. The caterpillar hatches from the egg, forms a chrysalis, and emerges as an adult butterfly.
4. What is the pupa stage of a butterfly called?
A) Cocoon
B) Chrysalis
C) Nest
D) Shell
The pupa stage of a butterfly is called a chrysalis. This is the hard shell where the caterpillar transforms into a butterfly.
Part B: Fill in the Blank
Write the missing word on the line.
1. Complete metamorphosis has four stages: egg, larva, pupa, and adult.
Complete metamorphosis has four stages: egg, larva, pupa, and adult. Butterflies and frogs go through this type of change.
2. Incomplete metamorphosis has only three stages: egg, nymph, and adult.
Incomplete metamorphosis has only three stages because there is no pupa stage. Grasshoppers are an example.
3. The caterpillar and tadpole are both examples of the larva stage.
Both the caterpillar and the tadpole are larvae, which is the young feeding stage of animals that go through complete metamorphosis.
4. A grasshopper nymph looks like a small adult without wings.
A grasshopper nymph looks like a small adult without wings, which is why it is called incomplete metamorphosis.
5. The word metamorphosis means a big change in an animal's body as it grows.
Metamorphosis means a big change in an animal's body shape and form as it grows from young to adult.