characteristics of life

A _____ is something in the environment that causes an organism to respond.

• stimulus
• response
• cause
• effect

When a baby kitten becomes an adult cat, this is an example of...

• energy metabolism
• growth and development
• response to stimuli
• having cells

Living things are based on a universal genetic

code. What molecule is responsible for that code?

• RNA

• Lipid

• Protein

• DNA

Maintaining a stable internal

environment is called

• homeostasis

• equilibrium

• balance

• evenness

A reaction to a stimulus is a ______________.

• hiccup
• response
• metabolism
• homeostasis

An organism that makes its own food is 

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

Identify the characteristic: when you step out into the cold, your body shivers in order to keep its temperature at 98.6^oF.

• All living things use energy

• All living things contain cells

• All living things maintain homeostasis

• All living things grow and develop

Identify the characteristic: 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 and develop

Identify the characteristic: a caterpillar hibernates in a cocoon and emerges as a butterfly.

• All living things adapt to their environment

• All living things use energy

• All living things respond to their environment

• All living things grow and develop

Pick the true statement about cellular organization:

• cells working together make tissues
• cells working together make organs
• tissues working together make organ systems
• organs working together make cells