UNIT TEST 2_REVIEWER_SCIENCE_P4_2024

Animal without backbone is_____________.

• vertebrate

• invertebrate

______ simplest kind of invertebrate.

• sponge

• arthropods

• exoskeleton

___________ armlike parts are called tentacles with a poisonous stinging cells.

• arthropods

• cnidarians

• insects

___________ is a seashell and lives in water with soft bodies.

• sponge

• echinoderm

• mollusk

__________ parts of the animal's body match up with other parts around a midpoint or line.

• symmetry

• invertebrate

• cnidarians

________ has spiny skin, and it has an internal support structure called an endoskeleton.

• arthropods

• echinoderms

• mollusks

__________ have jointed legs and a body that is divided into sections.

• sponge

• echinoderms

• arthropods

Every arthropod has an ___________. This is the hard covering that protects the body.

• exoskeleton

• endoskeleton

The largest invertebrate group is ___________.

• arthropods

• echinoderms

• cnidarians

________ have one pair of antennae, three pairs of legs, one or two pairs of wings, and three body sections.

• crustaceans

• arachnids

• insects