Worksheet: Animal Life Cycles

In this worksheet, we will practice describing the stages of life cycles and comparing the life cycles of different animals.

Q1:

Plants begin life as seeds and owls begin life as eggs. How does the life cycle of an insect begin?

  • AAs a seed
  • BAs a pupa
  • CAs an egg
  • DAs a larva

Q2:

Mosquito eggs grow into larvae. What do a plant seeds grow into?

  • AAn adult plant
  • BA flower
  • CA seedling
  • DA fruit

Q3:

Below are the life cycles of a mammal (dog) and an amphibian. Amphibians, insects, and birds lay eggs which hatch into young. What do mammals give birth to?

  • APuppies
  • BLive young
  • CSeeds
  • DTadpoles
  • EEggs

Q4:

The life cycle of a mosquito is shown below. Mosquitos start life as eggs. How does the life cycle of a plant begin?

  • AWith pollen
  • BWith an egg
  • CWith a seedling
  • DWith a seed

Q5:

The diagram shows the life cycle of a frog. Which stage in the life cycle comes after the eggs?

  • AA tadpole with two legs
  • BThe tadpole
  • CThe embryo

Q6:

The life cycle of an owl is shown below. Owls begin life as an egg and grow into a fledgling (baby owl). What is the name of a young plant?

  • ASeedling
  • BPlant
  • CFlower
  • DSeed

Q7:

Which animals give birth to live young?

  • ADucks
  • BAnts
  • CWorms
  • DDogs

Q8:

Fill in the blank: Mammals give birth to their young, while birds lay eggs that their young out of.

  • Ahatch
  • Bare reproduced
  • Care birthed

Q9:

Which of the following animals’ young hatch from eggs?

  • ACats
  • BDeer
  • CRabbits
  • DFish

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