Biology 1.3

Living things are made up of basic units called:

• viruses
• atoms
• cells
• organs

All life on Earth is based upon a universal genetic code (DNA).

• True
• False

All living things use:

• materials and energy
• materials
• energy
• brain tissue

This insect is living because during its life it will:

• Develop
• Grow
• Is made of atoms
• Grow and develop

Homeostasis is a characteristic of living things.  It means:

• maintaining a stable internal (inside) environment
• using a lot of energy
• growth and development
• reproduction

The process in which 2 cells from different parents unite to produce the first cell of a new organism is called:

• homeostasis
• development
• asexual reproduction
• sexual reproduction

Biology is the science that study..

• all forms of matter

• all forms of life

• the forms of soil

• transformation of energy

a cell is the smallest unit of an organism that can be considered alive.

• TRUE

• FALSE

a multicellular organism may contain trillions of cells.

• TRUE

• FALSE

A single-celled organism divides in half to form two new organisms.

• sexual reproduction

• asexual reproduction