SC.6.L.14.1 - Life’s Hierarchy

Which choices shows the parts of an organism arranged by size from smallest to largest?

• Atom, Tissue, Cell, Organ

• Molecule, Cell, Tissue, Organ

• Organ, Tissue, Cell, Molecule

• Cell, Organ, Tissue, Organ System

The smallest unit of matter that has the properties of a substance

• atom

• molecule

• element

• none of these

A group of atoms held together by chemical bonds is

• molecule

• atom

• mixture

• none of these

The structural and functional unit of life is

• protein

• mitochondria

• cell

• organism

A group of similar cells that perform a common function

• cell membrane

• tissue

• cell

• organ

The brain, spinal cord, and nerves work together to control all body functions. What level of organization do they represent as a group?

• cells

• organ

• organ system

• tissue

1. Humans and other complex organisms have a hierarchical system of organization. Which of the following statements is true regarding this system of organization?

• Atoms are made of cells.

• Organs are made of organ systems.

• Cells are made of tissues.

• Organs are made of tissues.

1. In a human body, which of the following represents the highest level of structural organization?

• an atom in the lung

• lung tissue

• the lungs

• the respiratory system

When a group of organs work together to perform a particular function they create a/an

• organ system
• organism
• tissue
• organ

Which is an example of an organism?

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