Biology, Chapter 1, Biology in the 21st Century, Review

The most common organism on Earth has

• one cell

• two cells

• more than one cell

• no cells

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Animals need _____ from food in order to build up or break down materials.

• DNA

• metabolism

• energy

• sunlight

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Cells reproduce by

• dividing

• combining

• producing seeds only

• sleeping

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The scientific study of all forms of life is called __________.

• geology

• chemistry

• physics

• biology

Homeostasis is important because _________ need certain conditions in order to function.

• behaviors

• metabolism

• cells

• systems

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This is an organized group of related parts that interact to form a whole.

• evolution

• adaptation

• ecosystem

• system

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This is a physical environment with different species that interact with each other and with nonliving things.

• evolution

• adaptation

• ecosystem

• system

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If an ecosystem includes all of the living and nonliving things in an environment, then the study of ecosystems would be _________.

• biology

• chemistry

• ecology

• physics

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This is a change in living things over time.

• ecosystem

• evolution

• adaptation

• homeostasis

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Sight is an example of ________________.

• qualitative data

• quantitative data

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