Crustaceans
How many body regions do most crustaceans have?
Three
How many pair(s) of legs does a centipede have on most of its body segments?
One
Mollusks that have two matching shells are called this.
Bivalves
The structure that surrounds the cell and protects it.
Cell Membrane
The chemical process by which plants produce food.
Photosynthesis
How many legs do most crustaceans have?
Ten
What are the stiff bristles on the body of an earthworm called?
Setae
A one-shelled mollusk is referred as this.
Univalves
The structure that directs the work of the cell.
Nucleus
The green pigment that gives plants its green color.
Chlorophyll
Most crustaceans breathe through ______________.
Gills
Earthworms enrich the soil with their ____________.
Castings
The octopus belongs to the _____________ group.
Mollusk or Cephalopod
The jellylike substance that fills the cell is called ______________.
Cytoplasm
_____________ bear cones instead of flowers.
Conifers
The spiny lobster is a lobster with no ______________.
Pincers
The ____________ releases a poison through its stink gland along the side of its body near its many legs as a means of defense.
Millipede
A snail and slug have a muscular foot called the _____________ and use it for moving.
Gastropod
_____________ are threadlike structures in a cell that determine the characteristics of the organism and how it runs.
Chromosomes
Plants that have only one season of growth are called _______________.
Annuals
What is the body region called when the head and thorax are joined together.
Cephalothorax
Why are worms not considered arthropods.
They have no exoskeleton or external skeleton
Name two mollusks that are bivalves.
Mussels, oysters, clams, scallops
Name two protozoans.
Paramecium, Amoeba, Euglena
Which tree has needles that grow in bundles.
Pine