Stages in the Development of an Insect SC.4.L.16.4

The stages in the development of an insect are shown below. (Refer to the diagram) Which observation best supports the conclusion that this insect undergoes incomplete metamorphosis?

• The insect changes color when it becomes an adult.

• The first stage of the insect’s development is as an egg.

• The insect undergoes more than four stages in its development.

• The insect has similar body parts throughout its development.

How is the life cycle of chiggers different from the life cycle of butterflies?

• Chigger larvae have legs.

• Chiggers have a nymph phase.

• Chiggers go through metamorphosis.

• Chigger larvae hatch from eggs.

Some students examined two samples of pond water with a hand lens over three days. Each day they compared what they saw with pictures of samples their teacher had labeled. Their observations are listed below. • On Day 1 the students identified mosquito eggs and mosquito larvae in one water sample and dragonfly nymphs in the other water sample. • On Day 2 the students saw that the mosquito larvae had curled up and stopped moving. • On Day 3 the students saw that a dragonfly with wings had developed from one of the nymphs. Based on their observations, the students concluded that mosquitoes undergo complete metamorphosis while dragonflies undergo incomplete metamorphosis.

• The mosquito life cycle includes larvae that become pupae, while the dragonfly life cycle includes adults that develop directly from nymphs.

• The mosquito life cycle includes larvae with wings, while the dragonfly life cycle includes nymphs.

• The mosquito life cycle includes eggs that hatch in water, while the dragonfly life cycle includes nymphs that develop in water.

• The mosquito life cycle includes nymphs that hatch from eggs, while the dragonfly life cycle includes adults that develop directly from larvae.

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NGSS.MS-LS3-2

The diagrams below represent the life cycles of four different insects. Which of these insects goes through a complete metamorphosis?

• F

• G

• H

• J

This diagram shows two stages in the life cycles of ladybird beetles and grasshoppers. Based on the diagram, which statement best compares the life cycles of these two types of organisms?

• Young ladybird beetles take many years to develop into adults. Young grasshoppers develop into adults quickly.

• Young grasshoppers live in a habitat that is different from that of adults. Young ladybird beetles live in the same habitat as adults.

• Young grasshoppers undergo incomplete metamorphosis to become adults. Young ladybird beetles undergo complete metamorphosis to become adults.

• Young ladybird beetles have a nymph stage before becoming adults. Young grasshoppers are larvae before becoming adults.

Lacewings are insects that hatch from eggs. Refer to the diagram of the Lacewing Life Cycle. Which of these correctly compares the lacewing life cycle with the frog life cycle?

• Adult lacewings lay eggs, but adult frogs give birth to live larvae.

• When they hatch, young lacewings and young frogs look different from their adult forms.

• When they hatch, both lacewings and frogs have long legs for jumping.

• Both adult lacewings and adult frogs have more legs than they had as larvae.

The life cycle of both butterflies and grasshoppers starts at the same stage. Which of the following is the beginning stage of the life cycle for both the butterfly and the grasshopper?

• egg

• larva

• nymph

• pupa