Unit 4 Part 2 Review

A lady beetle changes in several ways as it grows and develops. How is its life cycle different from the life cycle of a cricket?

• The lady beetle looks the same at every stage of its life cycle.

• The lady beetle changes body shape when it becomes an adult.

• The lady beetle grows larger at every stage while keeping the
  same body shape.

• The lady beetle changes only slightly from one stage to the next.

A cricket in the nymph stage will grow larger and grow wings but otherwise will keep looking about the same.

• True

• False

At which stage in the life cycle of a plant are seeds produced? 

• 1. Seedling

• Sprouting seed

• Young plant

• Mature Plant

Which external structure of the duck functions for movement on both land and water?

• beak

• wings

• feet

• tail

How does the shape of a duck’s foot help it survive? 

• The pointed tips help the duck grab fish.

• 1. The pointed tips help the foot move easily through the water. 

• 1. The webbed skin between the toes helps the duck push water. 

• The layer of skin between the toes helps keep the duck warm.

Observe the photograph. The cricket shown is in the ________ stage of its life cycle.

• larva

• pupa

• adult

• nymph

When a porcupine feels threatened, it raises its quills. How does this help the porcupine survive when attacked by a predator?

• It can run faster.

• It can climb trees more easily.

• It will make itself look bigger and more dangerous.

• It will blend into its environment.