Question | Answer |
These are invertebrates with soft, unsegmented bodies that are often protected by a hard outer shell. | Mollusks |
A mollusks' thin layer of tissue that acovers its internal organs and an organ called a foot. | Mantle |
This is where the blood is not always inside the blood vessels. | Open Circulatory System |
Organs that remove oxygen from water. | Gills |
Three major groups of mollusks. | Gastropods, Bivalves, and Cephalopods |
The largest group of mollusks that include snails and slugs. They have a single external shell or no shell at all. | Gastropods |
Some gastropods are this, animals that eat only plants. | Herbivores |
Animals that eat only other animals. | Carnivores |
Gastropods use this organ, a flexible ribbon of tiny teeth, to obtain food. | Radula |
A second group of mollusks, includes oysters, clams, scallops, and mussels. They have two shells held together by hinges and strong muscles. | Bivalves |
Most bivalves are this, animals that eat both plants and animals. | Omnivores |
An ocean dwelling mollusk whose foot is adpted to form tentacles around its mouth, octopuses and squids. | Cephalopods |
Invertebrates that have an external skeleton, a segmented body, and jointed attachments call appendages. | Arthropods |
The major groups of arthropods.(at least 2) | Crustaceans, Arachnids, Centipeds and Millipedes, and Insects. |
An arthropod has a waterproof waxy covering called this. | Exoskeleton |
The process of shedding an outgrown exoskeleton. | Molting |
An appendage attached to the head that contains sense organs. | Antenna |
Arthropods with three body sections, six legs, one pair of antennae, and usually one or two pairs of wings (example - moths, caterpillers, plant hoppers, dragonflies, cockroaches, and bees). | Insects |
Three sections of an insect. | Head, Thorax (midsection) and Abdomen |
An insect with this has four different stages: egg, larva, pupa, and adult. | Complete Metamorphosis |
Two types of Metamorphisis | Complete and Gradual |
An insect with this has no distinct larval stage. An egg hatches into a stage called a nymph. | Gradual Metamorphosis |
A series of events in which on organism eats another and obtains energy. | Food Chain |
The study of food chains and other ways that organisms interact with their environment. | Ecology |
An organism that makes its own food, a food chain starts with this. | Producer |
An organism that obtains energy by eating other organisms. | Consumer |
An organism that breaks down the wastes and dead bodies of other organisms. | Decomposer |
An animal that carries pollen among plants is called this. | Pollinator |
Chemicals that kill pests. | Pesticides |
A natural predator or disease released into an area to fight a harmful insect. | Biological Control |
Invertebrates with an internal skeleton and a system of fluid-filled tubes called water vascular system. | Echinoderms |
An internal skeleton made of hardened plates. The skin of most echinoderms is stretched over this internal skeleton. | Endoskeleton |
The internal system of fluid-filled tubes in echinoderms. | Water Vascular System |
Portions of the tubes in this system con contrct or squeeze together, forcing water into structions. | Tube Feet |
Theses are four major groups of echinoderms. | Sear Stars, Brittle Stars, Sea Urchins, and Sea Cucumbers |