The Excretory System Reading check

What is the primary role of the excretory system?

• To transport oxygen to cells

• To regulate blood pressure

• To produce energy for the body

• To remove waste and excess water

Which organ is the main organ of homeostasis and excretion?

• Liver

• Skin

• Kidneys

• Lungs

What is homeostasis?

• The process of breaking down nutrients

• The production of sweat to cool the body

• The body’s attempt to maintain a constant internal environment

• The removal of solid waste from the body

Tags

NGSS.MS-LS1-2

Which of the following is an example of negative feedback?

• Blood clotting

• Regulation of body temperature

• Amplification of a change in the body

• Increase in glucose levels in the blood

Tags

NGSS.HS-LS1-3

How does the liver contribute to the excretory system?

• By exhaling carbon dioxide

• By producing sweat

• By breaking down excess amino acids and converting ammonia to urea

• By filtering blood to remove waste

What is the difference between negative feedback and positive feedback?

• Negative feedback reverses changes, while positive feedback amplifies changes

• Negative feedback amplifies changes, while positive feedback reverses changes

• Negative feedback is uncommon, while positive feedback is common in the human body

• Negative feedback occurs in the liver, while positive feedback occurs in the kidneys

Tags

NGSS.HS-LS1-3