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Wings
Crawfish
General Characteristics of Arthropods
Insects
Spiders
100

Scaled wings covered with a powdery substance found on butterflies and moths.

What is order Lepidoptera?

100
This is the class where crawfish belong.
What is Class Crustacea?
100
This body covering provides support and protection to all arthropods.
What is the exoskleleton?
100

Insects have these types of eyes for sight and for  detecting light.

What are both compound eyes and simple eyes?

100

Spiders are found in this class of phylum Arthropoda.

What is class Arachnida?

200

Insects with tough, horned wings that protect a pair of membranous wings and generally cover the entire body.

What is order Coleoptera?

200
This is the combined head and thorax segments of a crawfish.
What is the cephalothorax?
200
During this process, an arthropod excretes enzymes to weaken its body covering in order to replace it with a new one.
What is molting?
200

The two structures of the insect's body used in respiration in place of lungs or gills.

What are spiracles and the trachea?

200
All spiders have this number of walking legs.
What are 4 pairs?
300

Grasshoppers and crickets with leathery wings covering a set of membranous wings.

What is order Orthoptera?

300

Located in the antennules, these hold a few grains of sand and are used for balance.

What are statocysts?

300
Arthropods all have this vital organ running from the ganglia to the posterior of the body.
What is the ventral nerve chord?
300

These are the four characteristics common among insects.

What is 3 pair of legs, 1 pair of antennae, 3 body segments, usually wings at some point in their life?

300
These spider webs have no discernible pattern.
What are tangle webs?
400

Insects with a social order and membranous wings .

What is order Hymenoptera?

400

These are covered by the carapace and allow for gas exchange by movement of the walking legs.

What are gills?

400
In this system, the heart pumps blood into vessels which then empty out directly into cavities throughout the body.
What is an open circulatory system?
400
These are the 4 stages of metamorphosis.
What is the egg stage, larva stage, pupa stage, and adult stage?
400
Spiders usually have 4 pairs of these single lens eyes.
What are simple eyes?
500

The insects with a pair of membranous wings for flying and a second set for balancing.

What is Order Diptera?

500

Located between the stomach and intestine, these glands secret enzymes to further break down food.

What are digestive glands.

500
The arthropod uses these sensory organs for taste, touch, and smell.
What are antennae?
500
During this stage of incomplete metamorphosis, the insects resemble mini adults without wings or reproductive organs.
What is the nymph stage?
500
Spiders have these organs for respiration.
What are book lungs?