Investigating Circulation: Blood

Blood is a complex tissue with vital functions, including transporting oxygen, nutrients, and wastes, protecting the body from harmful substances, and forming clots to prevent bleeding.

What is blood classified as in the human body?

• A simple tissue

• A type of organ

• A complex tissue

• A form of muscle

Which of the following is NOT transported by blood?

• Carbon dioxide

• Oxygen

• Nutrients

• Hormones

Which of the following is a function of blood?

• Generating heat

• Digesting food

• Transporting nutrients

• Producing sound

How does blood help protect the body?

• By providing energy

• By attacking harmful substances

• By regulating temperature

• By producing hormones

What is the role of blood clots?

• To fight infections

• To transport oxygen

• To stop bleeding

• To increase blood flow