Characteristics of Life

What type of organism uses energy from the sun to make its own food?

• Autotroph

• Heterotroph

Which type of organism cannot make its own food, but must eat it instead?

• Autotroph

• Heterotroph

Reproduction that only involves one parent and all offspring are identical; for example, binary fission of bacteria or amoebas.

• Asexual

• Sexual

• Division

• Addition

Reproduction that involves cells from two parents uniting to produce the first cell of a new organism.

• Asexual

• Sexual

• Budding

• Division

Maintaining a stable internal environment is called

• homeostasis

• equilibrium

• balance

• evenness

Which choice shows the levels of organization in order from LARGEST to smallest.

• organism, organ system, organ, tissue, cell
• cell, tissue, organ, organ system, organism
• organism, cell, organ system, tissue, organ
• cell, cell, cell, cell, cell

A ___ is the smallest unit of life.

• atom

• stimulus

• cell

• DNA

Metabolism is the way organisms detect and respond to stimuli

• True

• False

An organism that uses sunlight to produce its own food is called a heterotroph.

• True

• False

An organism that eats only plants is an herbivore.

• True

• False