Characteristics of Animals
Invertebrate Classification
Invertebrate Classification II
Vertebrates
Vertebrates II
100

The term used to describe an animal, such as a bird, that can regulate its inner body temperature.

What is endothermic?

100

An animal without a backbone.

What is an invertebrate?

100

The only invertebrates that can fly.

What are insects?

100

Periodic shedding of skin by squamates.

What is molting?

100

Other than having vertebrae, all vertebrates share this characteristic.

What is an endoskeleton?

200

A digestive system with two openings.

What is a complete gut?

200

Other than not having a backbone, all invertebrates share this characteristic.

What is an ectotherm?

200

Spiders, scorpions, and other arthropods with two body segments and eight legs.

What are chelicerates?

200

This animal has no legs, no ear openings and has immovable eyelids.

What is a snake?

200

A type of fish without scales or paired fins.

What is a jawless fish?

300

This term is used to describe an animal when the sensory organs and brain are concentrated at one end. 

What is cephalization?

300

This animal has no symmetry, no cephalization and no gut.

What is a sponge?

300

Arthropods with either eight or ten legs.

What are crustaceans?

300

This structure attaches an embryo to a placenta.

What is an umbilical cord?

300

This term comes from Greek words meaning "double life."

What is an amphibian?

400

The study in which creationist taxonomists have attempted to define where the boundaries are between the various kinds of animals. The term itself comes from the Hebrew words meaning "created kind."

What is baraminology?

400

This group of animals has radial symmetry and stinging cells (cnidocytes), used to capture food.

What are cnidarians?

400

Sea urchins and other marine mammals with radial symmetry and spiny skin.

What are echinoderms?

400

Kangaroo, opossum and koalas, are examples of mammals who raise animals in a pouch.

What is a marsupial?
400

A cow is an example of this type of mammal. 

What is a placental mammal?

500

Two equal halves divided along a midline.

What is bilateral symmetry?

500

A leech, displaying bilateral symmetry, is an example of this type of worm.

What is a segmented worm?

500
For this reason, snakes often need sunlight to warm their sluggish bodies after a cold night.

What is an ectotherm?

500

Another name of an egg laying mammal, such as a platypus or echidna.

What is a monotreme?

500

These animals are covered in scale like scutes.

What are crocodilians?

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