Animals
Classification Basics
Chordates & Vertebrates
Invertebrate Groups
Arthropods Up Close
100

Animals must eat other organisms to get energy instead of making their own food.

Answer: What are consumers?


100

Animals with backbones belong to this group.

Answer: What are vertebrates?


100

All chordates have this structure at some point in their lives.

Answer: What is a notochord?


100

These animals have jointed appendages and an exoskeleton.

Answer: What are arthropods?


100

This group includes spiders and scorpions.

Answer: What are chelicerates?


200

Animals are multicellular and have cells that perform different jobs.

Answer: What are specialized cells?


200

Animals without backbones belong to this group.

Answer: What are invertebrates?


200

Not all chordates develop this structure.

Answer: What are vertebrae?


200

Clams, snails, and squids belong to this group.

Answer: What are mollusks?


200

This is the only invertebrate group capable of flight.

Answer: What are insects?


300

This type of cell structure is found in animals, plants, fungi, and protists—but not bacteria.

Answer: What are eukaryotic cells?


300

This structure helps classify animals based on internal space around organs.

Answer: What is a body cavity?


300

This internal support system is made of living tissue.

Answer: What is an endoskeleton?


300

Jellyfish and coral belong to this group and have stinging cells.

Answer: What are cnidarians?


300

This arthropod group includes crabs, shrimp, and lobsters.

Answer: What are crustaceans?


400

Animals reproduce producing offspring of the same basic kind.

Answer: What is reproducing after their own kind?


400

This term refers to animals having a distinct head region.

Answer: What is cephalization?


400

Birds and mammals share this trait that helps regulate body temperature.

Answer: What is endothermy?


400

These animals have no symmetry, no true tissues, and no gut.

Answer: What are sponges?


400

This hard outer covering protects arthropods but must be shed to grow.

Answer: What is an exoskeleton?


500

This trait allows animals to respond quickly to their environment using muscles and nerves.

Answer: What is movement (or mobility)?

500

The study of classifying animals according to created kinds is called this.

Answer: What is baraminology?

500

Fish, amphibians, and reptiles share this temperature trait.

Answer: What is ectothermy?

500

Sea stars and sea urchins belong to this group and usually have radial symmetry.

Answer: What are echinoderms?

500

This process allows arthropods to grow by shedding their exoskeleton.

Answer: What is molting?

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