Ecosystems: Plants Review

What is an ecosystem?

• A group of living things interacting with each other and their environment.

• all the planets in space

• when living things sleep for the winter

Which list shows the correct order of the life cycle stages of a plant?

• seed > seedling > flower > plant > fruit

• seed > seedling > plant > flower > fruit

• seed > seedling > plant > fruit > flower

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What is the function of a seed?

• making pollen

• storing food for a new plant

• taking in water from the ground

What part of a seed is the baby plant?

• embryo

• seed coat

• cotyledon

What is the major function of the leaves of a plant?

• absorb water

• produce seeds

• collect sunlight

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Why do plants need defenses?

• to protect themselves from predators.

• to harm the environment.

• they DO NOT need defenses.

Which is NOT a stage of a plant life cycle?

• adult

• germination

• larva

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What does soil have that plants can use for growth?

• oxygen

• sugar

• nutrients

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Which of these best supports the plant by helping it stay upright in the soil?

• roots

• stem

• leaves

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What is germination?

• when the roots take in water.

• when the seed coat cracks and the plant begins to grow.

• when the fruit grows.

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