Characteristics
Classes & Orders
Interesting & Important
100

The common characteristic of all arthopods is this.

What is an exoskeleton?

100

The crawfish belongs to this class.

What is (class) Crustacea?

100

This Latin term means "hundred legs."

What is centipede?

200

This class' characteristics consists of three pairs of walking legs, wings at some stage of life, one pair of antennae, and three body segments.

What is (class) Insecta?

200

This many Orders are listed in the book concerning Class Insecta.

What is five?

200

This type of wing appears to be a part of the exoskeleton and can be found on grasshoppers.

What are leatherlike wings?

300

This class' characteristics consists of four pairs of walking legs, a cephalothorax, four pairs of simple eyes, no antennae, and respiration through "book lungs."

What is (class) Arachnids?

300

There are about 7,000 known species of this phylum.

What is echinoderms/echinodermata?

300

When the head and thorax are united in a single segment it's called this.

What is the cephalothrorax? 

400

This is the largest order in class Insecta.

What is order Coleoptera?

400

This is the largest class in creation.

What is (class) Insecta?

400

This anatomy features air entering through the exoskeleton, passes through several thin layers where oxygen is absorbed. 

What are book lungs?

500

Members of this phylum have two sides, bilateral symmetry when larvae and radial symmetry in adulthood.

What is (phylum) Echinodermata/echinoderms?

500

This is the correct order of the classification of living things. 

What is Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species?

500

Only ants that have this can reproduce.

What are wings?