Definitions Flashcards

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1
Q

Movement

A

an action by an organism or part of an organism causing a change of position or place

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2
Q

Respiration

A

the chemical reactions in cells that break down nutrient molecules and release energy for metabolism

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3
Q

Sensitivity

A

the ability to detect or sense stimuli in the internal or external environment and to make appropriate responses

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4
Q

Growth

A

a permanent increase in size and dry mass by an increase in cell number or cell size or both

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5
Q

Excretion

A

removal from organisms of the waste products of metabolism (chemical reactions in cells including respiration), toxic materials, and substances in excess of requirements

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6
Q

Reproduction

A

the processes that make more of the same kind of organism

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7
Q

Nutrition

A

taking in of materials for energy, growth and development; plants require light, carbon dioxide, water and ions; animals need organic compounds and ions and usually need water

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