Animal Classification
An animal with a backbone.
What is a vertebrate?
Page: 376
A thick, hard outer covering that protects and supports animals' bodies.
What is an exoskeleton?
Page: 387
Animals whose skin is waterproof and covered in scales.
What are reptiles?
Page: 396
Animals without a backbone or no internal structure to help support their bodies.
What are invertebrates?
Page: 383
An animal that has a notochord, a nerve cord, a tail, and structures called pharyngeal pouches at some point in its life.
What is a chordate?
Page: 393
Describes an organism's body plan.
What is symmetry?
Page: 377
A structure, such as a leg or an arm, that extends from the body's central part.
What is an appendage?
Page: 387
Animals that have gills for absorbing oxygen gas and paired fins.
What are fish?
Page: 394
About 40% of this species are beetles.
What are insects?
Page: 387
Connects all the nerves to the brain.
What is the spinal cord?
Page: 394
Cannot be divided into any two parts that are nearly mirror images of each other.
What is asymmetry?
Page: 377
An arthropod that has four pairs of jointed legs and two body segments. ( examples: spiders, ticks, and scorpions)
What are Arachnids?
Page: 388
All of these animals have hair or fur covering their bodies.
What are mammals?
Page: 398
The simplest of the invertebrates that belong to the phylum Porifera.
What are sponges?
Page: 384
A flexible rod-shaped structure that supports the body of a developing chordate.
What is a notochord?
Page: 393
Classify the members of the animal kingdom into.
What is a phylum?
Page: 378
Many people like to eat these. (examples: lobster or crabs)
What are crustaceans?
Page: 388
Animals that must lay their egg in moist environments, such as ponds or lakes.
What are amphibians?
Page: 395
Another name for this worm is a nematode.
What is a roundworm?
Page: 385
Two groups of invertebrates for chordates.
What are tunicates and lancelets?
Page: 393
Proteins in an animal's cells that help with classification.
What are DNA and RNA?
Page: 378
The largest order of arthropods.
What are insects?
Page: 387
This animal's circulatory system includes a four-chambered heart.
What is a bird?
Page: 397
These animals' names mean "spiny skin." (examples: sea stars, sea cucumbers, and sea urchins)
What are echinoderms?
Page: 389
Lives most of their lives almost completely buried in the sand, but can swim.
What are Lancelets?
Page: 393