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A scientist who studies animals
Zoologist
Two characteristics ALL animals have
made of many eukaryotic cells and are consumers
Most animals can produce how?
sexually
one or more imaginary lines that can divide an animal to create mirror-image halves
symmetry
three types of symmetry
bilateral, radial, and asymmetry
an imaginary line drawn down the animal's middle creating two mirror-image halves; referred to as the midline
bilateral symmetry
more than one imaginary line
radial symmetry
the lack of mirror-image halves
asymmetry
the sense organs and brain clustered at one end of the body
cephalization
a hollow within the body that contains most of the animal's vital organs
body cavity
the digestive tract with two openings
complete guts
the digestive tract with one opening
incomplete guts
a flexible rod found in chordate animals
notochord
the name refers to animals that have a notochord
chordates
name given to animals with vertebrate (backbones)
vertebrates
name given to animals that lack a notochord or vertebrate
invertebrates
