Life Cycles of Animals — Answer Key
Part A: Multiple Choice
Circle the correct answer for each question.
1. What does a tadpole use to breathe?
A) Lungs
B) Gills
C) Skin
D) Fins
The correct answer is B) Gills.
2. Which life cycle stage comes AFTER the egg in the frog life cycle?
A) Froglet
B) Adult frog
C) Tadpole
D) Pupa
The correct answer is C) Tadpole.
3. What do ALL animal life cycles have in common?
A) They all lay eggs
B) They all have 4 stages
C) They all start with birth or hatching and end with reproduction
D) They all live in water
The correct answer is C) They all start with birth or hatching and end with reproduction.
4. Which correctly describes a 'froglet'?
A) A tadpole with no legs
B) A young frog that still has a tail
C) A young frog that has lost its tail
D) An adult frog
The correct answer is C) A young frog that has lost its tail.
Part B: Fill in the Blank
Write the missing word on the line.
1. The life cycle of a chicken is: egg → chick → adult chicken.
The correct answer is 'chicken'. The life cycle of a chicken is: egg → chick → adult chicken.
2. An animal that goes through complete metamorphosis changes shape completely.
The correct answer is 'shape'. An animal that goes through complete metamorphosis changes shape completely.
3. Dogs do not lay eggs — they give birth to live puppies.
The correct answer is 'puppies'. Dogs do not lay eggs — they give birth to live puppies.
4. The life cycle shows how an animal is born, grows, and reproduces.
The correct answer is 'is born'. The life cycle shows how an animal is born, grows, and reproduces.
5. Both moths and butterflies go through complete metamorphosis with 4 stages.
The correct answer is '4'. Both moths and butterflies go through complete metamorphosis with 4 stages.