Phylum or Class
Shrimp, lobsters and crabs belong to the crustacean order meaning 10 legs.
What is decapoda?
A derivative of carbohydrates that provides both flexibility and support.
What is chitin?
All organisms in phylum chordata have at some point in their development this; a flexible, supportive rod running the length of their bodies.
What is a notochord?
An organ covered with hundreds of small teeth, used for scraping food into the mouth of mollusks.
What is radula?
Most crustaceans do not broadcast these into the water but rather the males will transfer sperm directly to the females who store it in order to fertilize many batches of eggs.
What are gametes?
Most members of this phylum have a bilaterally symmetric, soft body, protected by a shell made of calcium carbonate.
What is phylum Mollusca?
The process of shedding an exoskeleton and replacing it with a new one.
What is molting?
A long bundle of nerve cells located along the dorsal part of an organisms body.
What is dorsal nerve cord?
A sheet of tissue surrounding the organs of a mollusk, producing the shell and aiding in respiration.
What is the mantle?
Female crabs have a wider abdomen than males in order to do this.
What is carry eggs?
This class includes squids and octopi. It is named for those organisms displaying a head-foot body shape.
What is class Cephalopoda?
These do not have a notochord in their adult form but have a leather like covering for support.
What is tunicates?
In which blood flows out of the blood vessels and into body cavities, where it comes in direct contact with cells.
What is open circulatory system?
An armored shield that covers the anterior portion of crustaceans.
What is carapace?
This term means an organism can be both male and female at the same time.
What is hermaphroditic?
This class contains clams and scallops. It is named for the 2 hinged shells or valves on their bodies.
What is class Bivalvia?
When a small piece of material gets caught inside an oyster's body, it's mantel secretes this.
What is calcium carbonate?
A network of water-filled canals ectoderms use for locomotion and feeding.
What is water vascular system?
The anterior part of an arthropod body, consisting of a head and other body segments fused together.
What is cephalothorax?
What is sea stars, brittle stars, or sea cucumbers?
This class includes limpets, conches and whelks. They display a stomach-foot body shape.
What is class Gastropoda?
These are often mistaken for sponges due to their rounded appearance.
What are sea squirts?
A system in which the blood always remains in the vessels.
What is closed circulatory system?
Lancelets have an arterial cavity that collects water that it takes in for filtering and sends it out of the body through this.
What is artiopore?
To increase the chances of finding each other, gametes are usually released when.
What is the same relative time period during a short season of the year?