Science flashcards
Vertebrates
An animal that has a backbone.
Invertebrates
An animal that does not have a backbone.
Consumer
An animal that feeds off of other animals.
Ganglion
A collection of neuronal bodies found in the voluntary and autonomic branches of the peripheral nervous system (PNS).
Gut
Converts food into energy.
Coelom
Surrounds and contains the digestive tract and other organs.
Bilateral Symmetry
When an organism has a left and a right.
Radial Symmetry
Interacts all directions no lefts and rights.
Asymmetry
The sides look different not identical.
Sponges
Sessile metazoans (multi celled immobile animals) that have water intake and outlet openings connected by chambers lined with choanocytes, cells with whip-like flagella.
Cnidarians
radial symmetry and self body stinging creatures.
Flatworms
soft bodied invertebrates that 80 percent are parasitic.
Roundworms
Bilaterally symmetrical, worm-like organisms that are surrounded by a strong, flexible noncellular layer called a cuticle.
Mollusks
Any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body.
Open circulatory system
pumps blood into a cavity called a hemocoel where it surrounds the organs and then returns to the heart(s) through ostia (openings).
Closed circulatory system
the blood stays within blood vessels
Annelid worms
segmented worms such as earthworms and leeches.
Exoskeleton
a hard covering that supports and protects the bodies of some types of animals.
Compound Eye
a visual organ found in arthropods such as insects and crustaceans.
Antenna
are paired appendages used for sensing in arthropods
Metamorphs
An organism that has undergone metamorphosis.
Endoskeleton
an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
Water vascular system
A hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration.
