Which blood vessels carry blood away from the heart?

What is the SI unit of force?

What is the primary function of the immune system?

Which of the following is not a component of the human nervous system?

What is the term for the process by which water vapor is released from plants into the atmosphere?

Which of the following is a greenhouse gas that is more potent than carbon dioxide but less abundant?

Which organ produces insulin and regulates blood sugar levels?

What is the process by which cells break down glucose to produce energy in the absence of oxygen?

In the human eye, which part is responsible for focusing light onto the retina?

What is the acceleration due to gravity on the surface of the Earth?