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Ch. 9 Science GWMMS

QuestionAnswer
Cell Is the basic unit of structure and function of all living things.
Tissue A group of similar cells that perform the same function.
Organ A structure that is composed of different kinds of tissue.
Adaptations A characteristic that helps an organism survive or reproduce in its environment.
Sexual reproduction The process by which a new organism develops from the joining of two sex cells.
Fertilization The process in which an egg cell and a sperm cell join to form a new organism.
Asexual reproduction A reproductive process that involves only one parent and produces offspring that are identical to the parent.
Phylum One of about 35 major groups into which biologists classify members of the animal kingdom.
Vertebrate An animal that has a backbone.
Invertebrate An animal that has no backbone
Bilateral symmetry Line symmetry; the quality of being divisible into halves that are mirror images
Radial symmetry The quality of having many lines of symmetry that all pass through a central point.
Larva The immature form of an animal that looks very different from the adult.
Cnidarian An invertebrate animal that uses stinging cells to capture food and defend itself.
Polyp A cnidarian body plan characterized by a vaselike shape and usually adapted for a life attached to an underwater surface.
Medusa A cnidarian body plan characterized by a bowl shape and adapted for a free-swimming life.
Colony A group of many individual animals.
Coral Reef A diverse environment named for the coral animals that make up its stony structure.
Parasite An organism that lives inside or on another organism and takes food from the organism in or on which it lives.
Host An organism that provides a source of energy or a suitable environment for a virus or another organism to live.
Free-living organism An organism that does not live in or on other organisms.
Scavenger A carnivore that feeds on the bodies of dead organisms.
Anus The opening at the end of an organism’s digestive system through which wastes exit.
Closed circulatory system A circulatory system in which blood moves only within a connected network of tubes called blood vessels.
Created by: mrs-edgar
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