Exploring Cellular Organization in Multicellular Organisms

Which of the following is NOT a function your body performs without you realizing it?

• Reading a book

• Breathing

• Heart beating

• Digesting food

What is the smallest unit of life in the human body?

• Cell

• Organ

• Organ system

• Tissue

Which of the following is the correct order of hierarchical organization in the human body?

• Cells, Organs, Tissues, Organ Systems

• Cells, Tissues, Organs, Organ Systems

• Tissues, Cells, Organs, Organ Systems

• Organs, Cells, Tissues, Organ Systems

What type of tissue lines the inside of your mouth?

• Nervous tissue

• Connective tissue

• Muscle tissue

• Epithelial tissue

What is the primary function of epithelial cells in the mouth?

• To protect from wear and tear

• To transmit nerve signals

• To aid in breathing

• To help with digestion

Which organ system is responsible for allowing us to breathe?

• Nervous system

• Digestive system

• Circulatory system

• Respiratory system

Which of the following organs is NOT part of the respiratory system?

• Lungs

• Trachea

• Stomach

• Diaphragm

What happens when the diaphragm contracts?

• The heart beats faster

• The stomach digests food

• Air is pulled into the lungs

• Air is pushed out of the lungs

How do the different organ systems in the body work together?

• They compete with each other

• They work together to keep us alive

• They only work during sleep

• They function independently

What analogy is used to describe the hierarchical organization of the human body?

• A puzzle

• A tree

• Russian nesting dolls

• A building