science 11 test

animal that do not have a backbone

• invertebrate

• vertebrate

a structure, such as a leg or an arm, that extends from the central part of body

• asymmetry

• appendage

• exoskeleton

can be divided into two parts that are nearly mirror images of each other

• asymmetry

• bilateral symmetry

• radial symmetry

a thick, hard outer covering that protects and supports animal’s bodies

• invertebrates

• vertebrate

• exoskeleton

• asymmetry

animals that do have a backbone

• invertebrate

• vertebrate

• exoskeleton

cannot be divided i to any two parts that are nearly mirror images of each other

• asymmetry

• bilateral symmetry

• radial

can be divided into two parts that are nearly mirror images of each other anywhere though the central axis

• asymmetry

• bilateral symmetry

• radial symmetry

invertebrates make up about 95% of the animal kingdom

• true

• false

worms, spiders, and snails are examples of invertebrates

• true

• false

scientists classify the members of the animal kingdom into 9 major species

• true

• false