life functions

A heterotroph is an organism that

• gets nutrients from other organisms

• gets nutrients from the sun

• gets nutrients from chemicals

The person in the picture is sweating to keep his body temperature constant. Which word describes this?

• Excretion

• Respiration

• Metabolism

• Homeostasis

Which is the only life function you do not have to do to stay alive?

• Reproduction

• Excretion

• Nutrition

• Transport

Which life function is it when a substance is absorbed across the cell membrane?

• Synthesis

• Transport

• Regulation

• Respiration

Which life function is combining simpler chemical substances to form more complex ones.

• respiration

• synthesis

• growth

• excretion

What is Excretion?

• process used by an organism to release energy from food

  (usually glucose).

• circulation or distribution of materials within an organism,

• involves the activities by which an organism obtains materials (food) from its environment and prepares them for use in the body

• the removal of toxic, cellular wastes products such as urine, sweat, and CO2.

The life function by which organisms obtain and process food is

• respiration

• transport

• nutrition

• excretion

The steady, internal balance that organisms must maintain to stay alive is called

• homeostasis

• synthesis

• growth

• reproduction

Which life function is shown in the diagram?

• Transport

• Respiration

• Excretion

• Nutrition

Which life function is shown in the picture?

• Growth

• Reproduction

• Synthesis

• Transport