Intro Unit Review

The combination of chemical reactions through

which an organism builds up or breaks down

materials as it carries out its life processes is called ...

• absorption

• metabolism

• digestion

• consumption

Maintaining a stable internal

environment is called

• homeostasis

• equilibrium

• balance

• evenness

When you step out into the cold, your body shivers in order to keep its temperature at 98.6F. Which characteristic of life does this represent?

• All living things use energy

• All living things contain cells

• All living things maintain homeostasis

• All living things grow

Living things are based on a universal genetic

code. What molecule is responsible for that code?

• RNA

• Lipid

• Protein

• DNA

An organism that makes its own food is 

• an omnivore
• a heterotroph
• an autotroph
• a carnivore

What characteristic is shown: A bacteria cell divides itself in two.

• Reproduce

• Respond to a Stimulus

• Homeostasis

• Grow and Develop

In order for something to be considered a living organism, it must display _____ of the characteristics of living things.

• one
• some
• all
• more than half

Which one is not a characteristic of living things?

• respire (exchange gasses)

• excrete waste

• ability to move

• made of cells

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables