Chapter 2 Pages 52-53 Flashcards
Invertebrate
Animals with no backbone or skull
Bilateral symmetry
Animal that looks the same on both sides
Radial symmetry
An animal that has a body that is circular
Asymmetrical
An animal with no symmetry
Ganglia
a structure containing a number of nerve cell bodies, typically linked by synapses, and often forming a swelling on a nerve fiber.
Gut
The stomach
Coelom
the body cavity in metazoans, located between the intestinal canal and the body wall.
Open circularity system
pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells.
Closed circulatory system
Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness.
Segment
Segmentation in biology refers to the division of some animal and plant body plans into a series of repetitive segments.
Exoskeleton
A hard outer shell on the outside of a animal
Compound eye
an eye consisting of an array of numerous small visual units, as found in insects and crustaceans.
Antennae
The long rods in top of insects that can smell and sense
Mandible
A claw like pinchers inside a mouth of a bug
Metamorphosis
The process of changing the body
