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Characteristics of Living Things
Chapter 1- 7th Grade
24
Science
7th Grade
01/06/2014

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Term
specialization
Definition
studying or working in only one part of a subject
Term
organism
Definition
quality or property that defines or classifies something
Term
characteristic
Definition
quality or property that defines or classifies something
Term
cell
Definition
basic unit of structure and function in living things
Term
response
Definition
reaction to a change
Term
autotroph
Definition
organism that an make its own food
Term
heterotroph
Definition
organism that cannot make its own food
Term
homeostasis
Definition
process of keeping conditions inside a body constant, no matter the conditions outside the body
Term
nutrient
Definition
chemical substance that is needed to carry out life processes
Term
ingestion
Definition
process of taking in food
Term
digestion
Definition
process of breaking down food so that it can be used by living things
Term
cellular respiration
Definition
process by which a cell releases energy from food molecules
Term
byproduct
Definition
something produced in addition to the main product
Term
excretion
Definition
process of getting rid of wastes
Term
transport
Definition
process of moving nutrients and wastes in a living thing
Term
stimulus
Definition
change that causes a response
Term
behavior
Definition
way in which living things respond to stimuli
Term
migration
Definition
seasonal movement of animals from one place to another and move back
Term
hibernation
Definition
inactive state of some animals during winter months
Term
spontaneous generation
Definition
idea that living things come from nonliving things
Term
reproduction
Definition
process by which living things produce new organisms like themselves
Term
offspring
Definition
new organism produced by a living thing
Term
asexual reproduction
Definition
reproduction needing only one parent
Term
sexual reproduction
Definition
reproduction needing two parents
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