Life Cycles Review

What is an organism?

• an individual plant or animal

• the living things in an ecosystem

• the stages of an organism's life

• when an animal begin it's time on earth

What is a life cycle? 

• an individual plant or animal

• the living things in an ecosystem

• the stages of an organism's life

• when an organism begin it's time on earth

When an organism reaches adult hood, what might happen next? 

• It might continue to grow and change.

• It might get smaller and weaker.

• It might reproduce to create another organism.

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True or False: All plants and animals only go through one life cycle before they die. 

• True

• False

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When in a life cycle is a plant most likely to die? 

• after it germinates.

• after it grows as a seedling.

• after it reaches adulthood.

• after it spreads it's seeds.

True or False: All animals are hatched from eggs. 

• True

• False

True or False: Humans do not have a life cycle like plants or animals. 

• True

• False

At which stage does a chicken work to reproduce and lay more eggs? 

• egg

• embryo

• chick

• adult

At which stage does a chicken grow and change quickly while learning about the world? 

• egg

• embryo

• chick

• adult

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Which is NOT a stage in a sunflower's life cycle? 

• seed

• germination

• flowering

• photosynthesis

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