Levels of organisation

What are the basic building blocks of all living organisms?

• Tissues

• Organs

• Cells

• Organ systems

What is the term for organisms made up of collections of cells?

• Unicellular organisms

• Multicellular organisms

• Specialised cells

• Tissues

What do specialised cells form?

• Tissues

• Organs

• Organ systems

• Cells

What do organs form?

• Tissues

• Cells

• Organ systems

• Specialised cells

Which organ systems provide dissolved materials that need to be moved quickly around the body in the blood?

• Digestive system

• Respiratory system

• Circulatory system

• Excretory system

How many levels of organisation do multicellular organisms have?

• One

• Two

• Three

• Four

Which of the following is an example of an animal organ system?

• Root system

• Leaf system

• Digestive system

• Stem system

Which of the following is an example of a plant organ system?

• Circulatory system

• Respiratory system

• Nervous system

• Root system

In the given diagram, what is 1?

• Leaf organ

• Palisade mesophyll cell

• Spongy mesophyll layer

• Root organ

In the given diagram, what is 2?

• Leaf organ

• Palisade mesophyll cell

• Spongy mesophyll layer

• Root organ