Topic 8: Exchange and transport in animals Flashcards
1
Q
What is meant by the term diffusion?
A
Diffusion is the process by which particles move from an area of high concentration to an area of low concentration.
2
Q
How does the circulatory system transport materials around the body?
A
The circulatory system transports materials around the body through the blood, which is pumped by the heart and distributed through a network of blood vessels.
3
Q
What is the role of the respiratory system in the body?
A
The respiratory system is responsible for taking in oxygen and expelling carbon dioxide through a process called respiration.
