Invertebrates Quiz

Which choice below contains characteristics for ALL invertebrates?

• bodies are multi-cellular, have backbones, keep internal conditions in balance, reproduce

• bodies are single-cellular, do not have backbones, reproduce, are autotrophs

• do not have backbones, reproduce, are heterotrophs, obtain oxygen for energy

• are autotrophs, do not have backbones, obtain food and oxygen for energy, are sessile

Which of the following is a characteristics shared by all animals?

• Their bodies have many cells

• They all eat plants.

• They all reproduce asexually.

• They have internal skeletons.

Which group of invertebrates must molt its exoskeleton as it grows?

• Cnidarians

• Mollusks

• Arthropods

• Echinoderms

Which invertebrate group below is describes as being the simplest of all the invertebrates with pores that are lined with specialized cells to obtain their resources?

• Segmented worms

• mollusks

• echinoderms

• sponges

You have observed an animal that lives in the water that has an hard outer covering, a segmented body and jointed legs. In which group of invertebrates would you classify this animal?

• Echinoderms

• Arthropods

• Mollusks

• Segmented Worms

What best explains or defines Molting?

• shedding of the exoskeleton for growth

• the metamorphosis of a butterfly

• an organism making its own food

• poison or the ability to sting

What best explains or defines an exoskeleton?

• a system of support outside an animal’s body

• an animal that has a backbone

• an animal that does not have a backbone

• a skeleton that is within an animal’s body

Which structure for movement is a characteristic of some Mollusk?

• stinging tentacles

• pores for obtaining food

• jointed legs

• a thick muscular foot

Which picture shows an example of an animal with an exoskeleton?

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Which animal below moves with the aid of tube feet and has “spiny skin"?

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