Invertebrate Animals Vocabulary Flashcards
Vertebrates
An animal that has a backbone.
Invertebrate
An animal that doesn’t have a backbone.
Consumer
An organism that eats other organisms or organic matter.
Ganglion
A mass of nerve cells.
Gut
The digestive tract.
Coelom
A body cavity that contains the internal organs.
Bilateral Symmetry
When a part of the body mirrors the other side.
Radial Symmetry
It’s body is organized around the center,like spokes on a wheel.
Asymmetry
You can’t draw a straight line to divide it body into two or more equal parts.Its body isn’t organized around a center.
Sponges
An Asymmetrical simple vertebrate with no guts,tissues,or neurons.
Cnidarians
Invertebrate with stingers is classified as - Cnidarians.
Flatworms
Most simple worms with bilateral symmetry.
Roundworms
Bilaterally Symmetric and have simple nervous systems.
Mollusks
Mostly living in the Ocean,these things it into three categories, Gastropods,Bivalves, and the Cephalopods.
Open Circulatory System.
A circulatory system in which the circulatory fluid is not contained entirely within vessels.
Closed Circulatory System
A Circulatory system in which the heart circulates blood through a network of blood vessels that form a closed loop.
Annelid Worms
SOmetimes called segmented worms with an identical, almost repeating body.
Exoskeleton
A hard,external,supporting structure.
Compound eye
An eye composed of many light detectors.
Antenna
A feeler that is on the head of an invertebrate such as a crustacean or an insect, that senses touch,taste, or smell.
Metamorphosis
(In an insect or amphibian) the process of transformation from an immature form to an adult form in tow or ore distinct stages.
Endoskeleton
An internal skeleton,such as the bony or cartilaginous skeleton of vertebrates.
Water Vascular System
(In an echinoderm) A network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels.
