What is Life?

Which of the following terms best describes green plants?

• multicellular heterotrophs

• multicellular autotrophs

• unicellular autotrophs

• unicellular heterotrophs

Which of the following is not a chemical of life?

• minerals

• water

• nucleic acids

• carbohydrates

The one factor that a scientists changes in an experiment is called the ___.

• responding variable

• hypothesis

• controlled variable

• manipulated variable

A bird fluffs its feathers to trap body heat to keep warm during winter months. This is an example of ___.

• homeostasis

• homeopathy

• spontaneous generation

• asexual reproduction

Sexual reproduction involves only one parent.

• true

• false

The process of change during an organism's life that results in a more complex organism is called growth.

• true

• false

Bacteria, the most numerous organisms on Earth, are multicellular organisms.

• true

• false

Another name for living things is organisms.

• true

• false

Organisms build up and break down materials in a process called metabolism.

• true

• false

In sexual reproduction, offspring are identical to the parent.

• true

• false