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Science Key Terms 2

Chapter 1 Book 2

cell the basic unit of structure and function in an organism
tissue a group of similar cells that perform a specific function
organ a structure that is composed of different kinds of tissue
adaptation a characteristic that helps an organism survive or reproduce in its enviornment
sexual reproduction the process by which a new organism develops from the joining of two sex cells
fertilization the joining of an egg cell and a sperm cell
asexual reproduction the process by which a single organism produces a new organism identical to itself
phylum one of about 35 major groups in which biologists classify members of the animal kingdom
vertabrate an animal that has a backbone
invertabrate an animal that does not have a backbone
larva an immature form of an animal that looks very different from the adult
cnidarin invertebrates that have stinging cells and take food into a centeral body cavity
polyp a cnidarin body plan characterized by a vase-like shape and usually adapted for a life attached to an underwater surface
medusa a cnidarin body plan characterized by a bowl-like shape and adapted for a free-swimming life
coral reef a diverse environment named for the coral animals that make up its stony structure
colony a group of many individual animals
Created by: carolinej2015