The Science of Biology TEST Study worksheet

A well tested explanation that explains a lot of observations is

• a hypothesis

• an inference

• a theory

• a controlled experiment

Any living thing is called an

• organ
• organization
• organism

All living organisms are made up of ____.

• Cells
• Bacteria
• Organs
• Tissue

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Respiration (breathing) is needed for........

• energy production
• getting rid of waste
• reproduction
• wind

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What do living things use energy for?

• To do things like grow, repair, replace cells, and digest.
• To find friends
• To succeed in school
• To reach their goal

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A change in an organism's surroundings that causes it to react is called

• a stimulus.

• a response.

• development.

• energy.

A plant grows toward the light. The plant's action is an example of 

• reproduction.
• a response.
• a stimulus.
• development. 

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Responding to change helps an organism to survive, which is the best example of a response to change:

• A polar bear hides it's cubs from danger.
• You move your hand away from a hot surface when you touch it.
• A cell only grows in a certain enviroment.
• A plant uses energy from the sun to make sugar. 

What is known as the production of offspring?

• Reproduction
• Growth
• Development
• Homeostasis

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A cat mates and produces kittens. This is an example of

• homeostasis
• reproduction
• growth and development
• stimuli

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