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Chapter 4 Lesson 1&2
Vocab from the Interactive Science Textbook
Question | Answer |
---|---|
Homeostasis | "The condition in which an organism's internal environment is kept stable in spite of changes in the external environment." |
Adaptation | "An inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment." |
Vertebrate | "An animal with a backbone." |
Invertebrate | "An animal without a backbone." |
Tissue | "A group of similar cells that perform a specific function." |
Organ | "A body structure that is composed of different kinds of tissues that work together." |
Radial Symmetry | "A body plan in which any number of imaginary lines that all pass through a central point divide the animal into two mirror images." |
Bilateral Symmetry | "A body plan in which a single imaginary line divides the body into left and right sides that are mirror images of each other." |