Final Exam Review: Chapters 19-24

The head, thorax, and abdomen are the body regions of a(n)...

• Arthropod

• Insect

• Arachnid

• Mollusk

These are invertebrates with cylindrical bodies divided into many ring-like segments. Includes earthworms and sea worms.

• Roundworms

• Filaria worms

• Segmented worms

• Threadworms

This is a hollow, gas-filled chamber that allows a fish to adjust its buoyancy.

• Gizzard

• Crop

• Swimmerets

• Swim bladder

Which organelle serves as the power plant of a cell?

• Ribosome

• Nucleus

• Golgi apparatus

• Mitochondrion

This is the internal skeleton that helps a cell maintain its shape.

• Cytosol

• Cytoplasm

• Cytoskeleton

• Cytokinin

This is the jelly-like fluid medium of a cell.

• Cytosol

• Cytoplasm

• Cytoskeleton

• Cytokinin

Arthropods with eight legs, no antennae, only simple eyes, and usually two body regions are called...

• Arachnids

• Insects

• True bugs

• Cephalopods

A(n) _______________ is any of the soft-bodied invertebrates that are distinguished by a muscular foot, a visceral hump, and a mantle.

• Mollusk

• Echinoderm

• Rotifer

• Arthropod

This is an aquatic invertebrate that has a sac-like body, a central digestive cavity with a single opening, and tentacles containing cnidocytes.

• Mollusk

• Cephalopod

• Coelenterate

• Rotifer

Order of insects that undergo complete metamorphosis and have large, membrane-like wings covered with tiny scales; includes butterflies and moths.

• Homoptera

• Orthoptera

• Diptera

• Lepidoptera