Human Biology

Which sequence represents increasing levels of organization in the human body?

• organ → organ system → cell → tissue

• organ → cell → organ system → tissue

• cell → tissue → organ → organ system

• cell → organ → tissue → organ system

Tags

NGSS.MS-LS1-3

Which human organ system removes liquid and gaseous waste from the body?

• endocrine

• excretory

• nervous

• muscular

Chemicals that regulate and control human body functions are known as

• fats

• hormones

• carbohydrates

• elements

The primary purpose of which human organ system is to produce hormones that regulate body functions?

• skeletal

• muscular

• circulatory

• endocrine

Which gas is used by humans in the process of cellular respiration?

• methane

• nitrogen

• oxygen

• carbon dioxide

A diagram representing the levels of organization within an organism is shown below. Which level of organization is identified by X?

• cell

• tissue

• organ

• organ system

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

The diagram below represents graham crackers in a food processor. When the processor is turned on, the blades will break the crackers into smaller pieces. Which human digestive process is most similar to this activity?

• mechanical digestion

• chemical digestion

• solid waste elimination

• liquid waste elimination

The diagrams below represent some respiratory structures in three organisms. The labeled structures in these organisms all have a similar function. What is the main function of the labeled structure(s) in each organism?

• circulation of blood

• digestion of food

• production of hormones

• exchange of gases

One function of the human excretory system is

• making materials that the body cells need

• removing excess heat energy from the body

• moving substances to and from body cells

• controlling the body’s responses to stimuli

What causes infectious diseases in the human population?

• allergic reactions

• poor dietary habits

• toxic chemicals

• microorganisms