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

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

• energy production

• getting rid of waste

• reproduction

• wind

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

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. 

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

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

• homeostasis

• reproduction

• growth and development

• stimuli