Exploring Animal Life Cycles

Which of the following animals hatches from an egg?

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TEKS.SCI.1.13B

What is the first stage in the life cycle of a fish?

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TEKS.SCI.1.13B

Which animal is a mammal?

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TEKS.SCI.1.13B

What do you call a young bird that has just hatched?

• Chick

• Calf

• Fry

• Kitten

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TEKS.SCI.1.13B

Put these stages of a bird’s life cycle in the correct order: Egg, Chick, Adult Bird.

• Chick, Egg, Adult Bird

• Egg, Adult Bird, Chick

• Egg, Chick, Adult Bird

• Adult Bird, Egg, Chick

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TEKS.SCI.1.13B

If you observe a fish laying eggs, what stage of the life cycle are you seeing?

• Adult

• Egg

• Fry

• Chick

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TEKS.SCI.1.13B

A kitten grows into a cat. What does this show about mammals?

• They do not change as they grow.

• They have a life cycle with different stages.

• They hatch from eggs.

• They stay small forever.

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TEKS.SCI.1.13B

You see a nest with eggs, then later see chicks, and finally adult birds. What does this tell you about the bird’s life cycle?

• Birds skip the egg stage.

• Birds start as adults.

• Birds grow from eggs to chicks to adults.

• Birds do not have a life cycle.

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TEKS.SCI.1.13B

Imagine you are watching a fish tank. You see eggs, then small fish, and then bigger fish. How would you describe the life cycle of a fish using your observations?

• Fish are always the same size.

• Fish grow from eggs to small fish to adults.

• Fish start as birds.

• Fish do not have a life cycle.

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TEKS.SCI.1.13B

A student observes a puppy growing into a dog. How can the student use this observation to explain the life cycle of a mammal?

• Mammals do not grow or change.

• Mammals start as adults.

• Mammals grow and change from young to adult.

• Mammals hatch from eggs.

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TEKS.SCI.1.13B