Grade 7 science

What is the basic unit of all living things?

• Tissue

• Organ

• Cell

• Organ system

Which of the following is a unicellular organism?

• Human

• Cat

• Bacteria

• Plant

Which organelle is the 'powerhouse' of the cell?

• Nucleus

• Ribosome

• Mitochondria

• Lysosome

What is the job of the cytoskeleton?

• Store energy

• Keep cell shape

• Produce DNA

• Control waste

How many characteristics do all living things share?

• 1

• 5

• 6

• 7

The passing of genetic traits from parents to offspring is called:

• Metabolism

• Photosynthesis

• Heredity

• Excretion

Complete the table comparing prokaryotic and eukaryotic cells:

What level comes after cells?

What level includes the heart?

Give an example of an organ system.