Review 1 Unit 2

Chicken eggs CAN develop into an embryo if they have NOT been fertilized.

• True

• False

What is a life cycle?

• a life cycle is a pattern that repeats itself continously

• a life cycle is series of stages that all living things go through

• a life cycle is a cycle that all non - living things go through

• a life cycle is a cylce that all living things and non - living things go through

An adult chicken lays eggs that have a hard shell that protects it. It hatches into a ..........

• egg

• chicken

• chick

• adult

A nymph of a cockroach ...

• looks like the adults, it is smaller and it has wings

• does not look like the adults, it is bigger and it has wings

• looks like the adults, it is smaller and it does not have wings

• does not look like the adults, it is smaller and it has wings

Look at this picture! What characteristic of living things shown on the picture?

• living things move

• living things reproduce

• living things respond to stimuli

• living things need food

All living things go through a cycle called a ....

• life cycle

• life pattern

• water cycle

• air cycle

All chicken eggs will hatch a chick.

• True

• False

The egg yolk’s white spot in a fertilized egg is the developing embryo.

• True

• False

Living things ______ to ensure survival of their own kind.

• produce

• reproduce

• make

• grow up

What happens to this animal?

• It is endangered

• It is extinct

• There are still many of it

• It is very limited