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CH11 & CH13 Vocab
Science
| Term | Definition |
|---|---|
| asymmetry | body organization that cannot be divided into any two parts that are nearly mirror images of each other |
| bilateral symmetry | body organization that can be divided into two parts that are nearly mirror images of each other |
| invertebrate | animal that does not have a backbone |
| radial symmetry | body organization that can be divided into two parts that are nearly mirror images of each other anywhere through the central axis |
| vertebrate | animal with a backbone |
| appendage | structure, such as a leg or an arm, that extends from the central part of the body |
| exoskeleton | thick hard outer covering that protects and supports animals, bodies |
| amphibian | organism, such as a frog, toad and salamander, that spends part of its life in water and part on land |
| chordate | animal that has a notochord, a nerve chord, a tail, and structures called pharyngeal pouches |
| egg | female sex cell that forms in an ovary |
| notochord | flexible, rod-shaped structure that supports the body of a developing chordate |
| scale | small, flat plate that forms part of an animal' s external covering |
| behavior | way an organism reacts to other organisms or to its environment |
| conditioning | modifying an organism's learned behavior so that a response to one stimulus becomes associated with a different stimulus |
| hibernation | response in which an animal's body temperature, activity, heart rate, and breathing rate decrease during periods of cold weather |
| homeostasis | organism's ability to maintain steady internal conditions when outside conditions change |
| imprinting | learned behavior that occurs when an animal forms an attachment to an organism or place within a specific time period afterbirth or hatching |
| innate behavior | behavior that is inherited rather than learned |
| instinct | complex pattern of innate behaviors |
| migration | instinctive, seasonal movement of animals from one place to another |
| stimulus | changes in an organism's environment that causes a response |
| aggression | forceful behavior used to dominate or control another animal |
| bioluminescence | chemical reaction that occurs within living things and gives off light |
| pheromone | chemical that is produced by one animal and influences the behavior of another animal of the same species |
| society | group of animals of the same species living and working together in an organized way |
| submission | condition of being humble or compliant |
| territory | area of land that an animal defends and uses for feeding, mating, and raising young |
| fertilization | fusion of an egg cell with a sperm cell |
| metamorphosis | developmental process in which the form of the body changes as an animal grows from an egg to an adult |
| ovary | female reproductive organ that produces egg cells |
| testis | male reproductive organ that produces sperm |
| zygote | new cell that forms from the fusion of an egg cell and a sperm cell |
Created by:
Ace Alvis
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