Characteristics of Living Things

Which of the following characteristics of living things best explains why your legs and arms get longer and stronger as you get older? 

• living things respond to their environment
• living things maintain internal balance
• living things are made of cells
• living things grow and develop

In all of our cells there is DNA. Which characteristic of life does this fact best describe?

• living things respond
• living things maintain internal balance
• living things are based on a universal genetic code
• living things grow and develop

The basic unit of life is called a (n)

• atom
• compound
• cell
• energy

Identify all of the following that are nonliving.

• Rock

• Oxygen

• Bacteria

• Battery

Identify all of the following that are living.

• Volcano

• Tree

• Sun

• Fungus

This image best represents which of the following characterists of life?

• growth

• levels of organization

• ability to reproduce

• composed of cells

• respond to the environment

Infants will often smile when they hear a parent’s voice. In this situation, the parent’s voice is considered

• stimulus

• response

• adaptation

• resource

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

• attracting a mate

• destroying infectious germs

• responding to a stimuli

• obtaining moisture from the air

Which of the following is a term used to describe all the chemical reactions that take place in a living thing?

• respiration
• mutations
• homeostasis
• metabolism

A change in an organism's surroundings that causes it to react is called

• a stimulus.
• a response.
• development. 
• energy.