Human Body Systems and Levels of Organization

The brain and spinal cord belong to which body system?

Which human body system controls the body's functions?

• circulatory

• nervous

• endocrine

• respiratory

Which two body systems work together to transport oxygen and nutrients around the body?

• endocrine and nervous

• circulatory and respiratory

• urinary and digestive

• integumentary and immune

Which two body systems work together to help the body move?

• endocrine and nervous

• circulatory and respiratory

• immune and integumentary

• muscular and skeletal

Which level of organization is the most simple

• cell

• tissue

• organ

• organ system

Which level of organization is the most complex

• tissue

• organ

• organ system

• organism

Which level or organization is missing?

cell, organ, organ system, organism

Which organelle of a plant cell is responsible for regulating turgor pressure?

• lysosome

• nucleus

• mitochondria

• central vacuole

Which human body system provides structure and support for the body?

What are three components of cell theory?

• All cells come from existing cells

• The cell is the basic unit of structure and function in life

• All living things are made up of cells

• Cells spontaneously exist