Levels of Organization

Which of the following is an organism?

• a herd of sheep

• a wolf

• a drop of water

• a heart

Tags

NGSS.MS-LS1-1

cell

• smallest unit of matter

• smallest unit of life

• group of 2 or more atoms joined by a covalent bonds.

• composed of only 1 type of atom

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

TISSUE . . .

• specialized structure within a cell that performs specific cellular functions.

• basic unit of life

• group of same cells.

• structure consisting of several different tissues to perform a specific function

Tags

NGSS.MS-LS1-3

Organ . . .

• specialized structure within a cell that performs specific cellular functions.

• basic unit of life

• group of same cells.

• structure consisting of several different tissues to perform a specific function

Organ system . . .

• specialized structure within a cell that performs specific cellular functions.

• group of organs working together to perform a vital body function.

• group of same cells.

• structure consisting of several different tissues to perform a specific function

organism

• a group of organs working together to perform a vital body function.

• a living thing

• same species interacting with each other

• all living things in a particular area.

Tags

NGSS.MS-LS1-1

Which of the following is the correct order of organization in living things from most basic (simple) to most complex?

• a.  Organism, cell, tissue, organ, organ system
• a.  Organ system, organ, tissue, cell, organism
• a.  Cell, tissue, organ, organ system, organism
• a.  Cell, organ, tissue, organ, organism, organ system

Anything that can perform life processes by itself is a/an

• cell
• organ
• organism
• organ system

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Which is an example of an organism?

• a beetle
• a lake
• a rock
• a shell

Tags

NGSS.MS-LS1-1

What is the difference between a cell and a tissue?

• cell is basic unit of life; tissue is group of cells that work as one
• cell is group of tissues; tissue is basic unit of life
• cell is basic unit of life; tissue is groups of different cells
• cell is group of organs; tissue is group of different cells

Tags

NGSS.MS-LS1-3