Has a soft asymmetrical abdomen that lives in a castoff mollusk shell for protection.
What is a hermit crab?
100
The area between the land and sea that is covered by water at high tide and uncovered at low tide.
What is the Intertidal Zone?
100
The part of the body of a vertebrate containing the digestive organs; the belly. In mammals it is bounded by the diaphragm and the pelvis.
What is an abdomen?
100
The line at which the earth's surface and the sky appear to meet.
What is the horizon?
100
Any device used to attach a thing to a surface, such as a clamp, nail, or hook
What is a holdfasts?
200
The correct name for the starfish.
What is the sea star?
200
A hard outer structure, such as the shell of an insect or crustacean, that provides protection or support for an organism.
What is an exoskeleton?
200
Any of a large group of marine crustaceans that are free-floating as larvae, but attach to submerged or intertidal surfaces such as wharves, rocks, ship bottoms, and the like, and form sharp-edged shells as adults.
What is a barnacle?
200
A thin, flexible, transparent cellulose material made from wood pulp and used as a moistureproof wrapping.
What is cellophane?
200
A structure built along a shore, and often into the water, at which boats can be docked and loaded or unloaded; pier; quay.
What is a wharf?
300
A hard-shelled animal: an invertebrate animal with several pairs of jointed legs, a hard protective outer shell, two pairs of antennae, and eyes at the ends of stalks.
What is a crustacean?
300
A pool of water remaining on a reef, shore platform, or beach after the tide has receded.
What is a tide pool?
300
A mollusk with two shells hinged together, such as a mussel, oyster, or clam.
What is a bivalve?
300
A major category of living organisms, or a group of genetically related language families.
What is a phylum?
300
Any of a large phylum (kingdom/group) of mostly marine invertebrates, including snails, clams, squid, and octopuses, that have soft unsegmented bodies usu. covered by a shell.
What is a mollusk?
400
Any of various saltwater and freshwater mollusks, esp. those species that are edible
What is a clam?
400
The arms of a sea star.
What are rays?
400
An air-filled structure in many fishes that functions to maintain buoyancy or, in some species, to aid in respiration.
What is an air bladder?
400
Living somewhere permanently or on a long-term basis.
What is a resident?
400
The ability or tendency to float in water or other fluid.
What is buoyancy?
500
Any of several bivalve mollusks that live in salt or fresh water.
What is a mussel?
500
Any of various primitive, chiefly aquatic plants that have no roots, stems, or leaves
What is algae?
500
Become adjusted to new conditions.
What is adapt?
500
A device, as on a door or lid, usu. consisting of two pieces connected at a joint so that one piece can open, close, or swing upon the other, stationary piece.