Transport In Animals Flashcards
1
Q
What is a surface area to volume ratio?
A
Small animals have a large surface area to volume ratio, large animals have a small surface area to volume ratio.
2
Q
What are the features of a good transport system?
A
- A medium to carry nutrients, oxygen, waste. (Eg. Blood)
- A pump to create pressure (eg. The heart )
- Exchange surfaces (capillaries)
- Tubes and vessels
- Two circuits
3
Q
What are the advantages of a double circulatory system?
A
- Blood pressure is maintained and can flow quickly
- Good supply of oxygen
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