Unit 1 Test Reviewer

All living organisms are made up of ________.

• cells

• bacteria

• organs

• tissues

Any change in an organism's surroundings that causes it to respond is known as __________.

• a reaction

• shivering

• a stimulus

• development

A plant growing towards a light source is an example of which of the following?

• Nutrition

• Respiration

• Excretion

• Irritability

A camel has eyelashes that work to keep the dust and sand out of its eyes. This example shows that living things __________.

• are able to adapt to their environment

• show movement

• are composed of cells

• use energy

When you step out into the cold, your body shivers in order to keep its temperature at 98.6F.

• All living things use energy
• All living things contain cells
• All living things maintain homeostasis
• All living things grow

Green plants produce their own food through the process of photosynthesis.

• All living things use energy
• All living things contain cells
• All living things maintain homeostasis
• All living things grow

YOU are a multi-celled organism but an amoeba is a single celled organism.

• All living things have cells
• All living things grow
• All living things use energy
• All living things respond to their environment

A living or once-living organisms in an ecosystem is a

• population
• biotic factor
• abiotic factor
• community

All nonliving things in an ecosystem are ____________

• None

• biotic factors

• abiotic factors

Which of the following is not a biotic factor?

• mushroom
• air
• elephant
• coyote