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Invertebrates

Teacher: Maddie George
Across
An invertebrate that has an external skeleton, a segmented body, and jointed attachments called appendages
An arthropod with only two body sections
The tough, flexible material from which arthropod exoskeletons are made
An outer skeleton
A structure in the body that is composed of different kinds of tissue
An arthropod that has two or three body sections, five or more pairs of legs, and usually three pairs of appendages for chewing
An organism that lives on or in a host and causes harm to that host
Line symmetry; the quality of being divisible into two halves that are mirror images
The ability of an organism to regrow body parts
The quality of having many lines of symmetry that all pass through a central point
An invertebrate with a soft, unsegmented body; most are protected by hard outer shells
Animals whose stinging cells are used to capture their prey and defend themselves, and who take their food into a hollow central cavity
An arthropod with three body sections, six legs, one pair of antennae, and usually one or two pairs of wings
A mollusk with a single shell or no shell
A process in which an animal's body undergoes dramatic changes in form during its life cycle
Down
Protective coloration; a common animal defense
A chemical released by one animal that affects the behavior of another animal of the same species
A mollusk that has two shells held together by hinges and strong muscles
A carnivore that hunts and kills other animals for food and has adaptations that help it capture the animals it preys upon
An appendage on the head of some animals that contain sense organs
An internal skeleton
A flexible ribbon of tiny teeth in mollusks
The production of light by a living organism
An animal with a backbone
The second stage of complete metamorphosis, in which an insect is enclosed in a protective covering and gradually changes from larvae to an adult
An animal that eats both plants and animals
A mollusk with feet adapted to form tentacles around its mouth
The cnidarian body plan characterized by a bowl shape and which is adapted for a free swimming life
The immature form of an animal that looks very different from the adult
The cnidarian body plan characterized by a vase like shape and is usually adapted for life attached to an underwater surface