TERMS
An exoskeleton.
What is a body covering, typically made of chitin, that provides support and protection?
The appendage of the crayfish that aids in the reproductive process.
What are the SWIMMERETES?
The main reason that Arachnids produce webs.
What is to CATCH their PREY?
The order of insects that biologists call social insects.
What is Order HYMENOPTERA? (bees, ants, and wasps)
True or False:
Adult Echinoderms lack cephalization.
True!
A statocyst.
What is the organ of balance in a crustacean?
The function of the GREEN GLAND.
What is cleaning the blood of impurities as it circulates through the crayfish, and then dumping the impurities back into its surroundings?
True or false: Only some species of spiders have silk glands, others lack this organ and cannot spin webs at all.
FALSE: ALL spiders have silk glands. However there are certain species that are unable to spin webs, but this is not because of a lack of silk glands.
The way insects still get plenty of oxygen without a respiratory system.
What is the purpose of the elaborate system of interconnecting tubes called TRACHEAS?
The number of classes in Phylum Echnodermata.
a. What is 7?
b. What is 9?
c. What is 11?
A. What is 7?
A gonad.
What is the general term for the organ that produces the gametes?
The disadvantage of an open circulatory system to crayfish and other arthropods.
What is open circulatory systems relying on gravity to make their blood flow properly, so if an organism ends up on its back for an extended amount of time, their tissues will die?
The main difference between the anatomy of a crayfish and a spider.
What is the presence of SILK GLANDS and SPINNERETS?
The type of wings of members of the Order ORTHOPTERA (grasshoppers and crickets).
What are LEATHER-LIKE wings?
4 of the 6 types of Echnoderms.
What are
1. Sea Stars
2. Sand Dollars
3. Sea Urchin
4. Sea Cucumber
5. Sea Lily
6. Sea Daisy ?
A cephalothorax.
What is a body region composed of the head and thorax fused together?
These are 4 of the 6 appendages of a crayfish.
What are...
1. Walking legs
2. Swimmerets
3. Uropods & Telson
4. Chelipeds
5. Anetennules
6. Antennae ?
The 3 types of webs which spiders spin.
What are
1. Sheet Web
2. Tangle Web
3. Orb Web ?
The 4 characteristics which separate insects from other members of Phylum Anthropoda?
What are
1. Three pairs of legs
2. Usually winged at some point in their life
3. One pair of antennae
4. Three body segments: head, thorax, abdomen ?
A WATER vascular system.
What is a network of water-filled canals that branch into structures called tube feet? (This is exclusive to echinoderms.)
The difference between a COMPOUND and SIMPLE eye.
What is an eye made of many lenses each with a very limited scope (compound)
vs.
an eye with only one lens (simple)?
The special ability allowed by appendages with double membranes.
What is to REGENERATE a lost appendage?
The four characteristics of the organisms of class Arachnida.
What are
1. Four pairs of walking legs.
2. A cephalothorax instead of separate head and thorax
3. No antennae
4. Respiration performed by organs called "book lungs" ?
The difference between COMPLETE and INCOMPLETE metamorphosis.
What is 4 stages- egg, larva, pupa, adult
vs.
3 stages- egg, nymph, adult?
The four functions of TUBE FEET.
What are
1. Locomotion
2. Respiration
3. Circulation
4. Feeding ?