Look at the diagram to answer the question that follows.

What body system is shown in the diagram?

• digestive

• circulatory

• respiratory

Which of these is NOT a part of the Cell Theory?

• All cells are independent.
• Cells are the basic unit of living things.
• All living things are one or more cells.
• Cells come from cells.

What is the function of the nucleus in a cell?

• Produces energy

• Controls cell activities

• Stores water

• Helps in movement

Which body system is responsible for transporting oxygen and nutrients throughout the body?

• Digestive system

• Circulatory system

• Nervous system

• Excretory system

What is the main function of the nervous system?

• Break down food

• Remove waste

• Send and receive messages

• Pump blood

Which organ is part of the excretory system?

• Heart

• Kidney

• Lungs

• Stomach

Which system removes carbon dioxide from the body?

• Digestive system

• Respiratory system

• Circulatory system

• Nervous system

Which of the following is NOT a function of the circulatory system?

• Transporting nutrients

• Pumping blood

• Sending electrical signals

• Carrying oxygen

Which organelle is found only in plant cells and helps with photosynthesis?

• Chloroplast

• Mitochondria

• Nucleus

• Ribosome

Which of the following best describes the relationship between the circulatory and respiratory systems?

• The circulatory system digests food for the respiratory system.

• The respiratory system provides oxygen that the circulatory system transports.

• The circulatory system controls breathing rate.

• The respiratory system pumps blood.