Unit 1 Test Review Life Science

Another name for a living thing is a(n)

• animal

• plant

• organism

• stimulus

The smallest unit of organisms that carry on life functions is called a(n)

• atom

• cell

• organism

• molecule

The maintenance of steady conditions inside an organism is

• control

• stimulus

• homeostasis

• variable

The first word of an organism's scientific name is the

• class

• genus

• kindgom

• species

The scientific name of any organism is the combination of

• kingdom and species

• genus and species

• class and genus

• class and species

Most energy comes either directly or indirectly from

• plants

• water

• photosynthesis

• the sun

Which is a function of a dichotomous key?

• make it difficult to find and identify a species

• cause communication problems

• group organisms according to their characteristics

• enable scientists to identify a species

What do all organisms need to survive?

• energy

• blood

• carbon dioxide

• soil

Choose the THREE parts of Cell Theory

• All living things are made of cells and their products

• New cells are created by old cells dividing into two

• Cells are the first level of organization

• Cells are the building units of life.

• Cells are Eukaryotic and Prokaryotic

Which structure of the cell regulates what enters and exits the cell?

• Mitochondria

• chloroplasts

• Cell membrane