Human Body Systems

Unicellular and multicellular organisms can both perform which processes?

• moving and finding shelter

• specializing cells and eating

• making food and removing waste

• growing and reproducing

Tags

NGSS.MS-LS1-4

NGSS.MS-LS1-5

Why do multicellular organisms have transport systems?

• Most cells are too specialized to make their own food.

• Most cells are too far away from the external environment to exchange substances with it.

• Most cells cannot use nutrients as a source for energy.

• Most cells lose materials to the environment and constantly need to resupply more.

Tags

NGSS.MS-LS2-3

Unicellular and multicellular organisms are very different, but they do share some functions. Which function do both types of organisms share?

• using transport systems

• creating specialized tissues

• intake of nutrients to support growth

• all life processes occurring in all cells

Which of the following jobs can BOTH multicellular and unicellular organisms perform? (Choose ALL correct answers.)

• take in nutrients

• grow

• reproduce

• create specialized cells

Tags

NGSS.MS-LS1-5

Which of the following functions only applies to multicellular organisms?

• formation of specialized cells for transport

• all life processes occurring in all cells

• reproducing

• intake of nutrients

Tags

NGSS.MS-LS1-3

Where does the exchange of oxygen and carbon dioxide between the air and blood occur in humans?

• esophagus

• nose

• lungs

• mouth

Which organ removes waste from the blood?

• gall bladder

• kidney

• liver

• lungs

The human heart ____________.

• has three chambers and pumps blood into veins.

• has three chambers and pumps blood into arteries.

• has four chambers and pumps blood into veins.

• has four chambers and pumps blood into arteries.

In which system is the stomach considered the main structure?

• Circulatory

• Digestive

• Nervous

• Respiratory

In which system is the heart considered the main structure?

• Circulatory

• Digestive

• Nervous

• Respiratory