3.1.2 transport in animals Flashcards
1
Q
the need for transport systems in multicellular animals
A
- size
- high metabolic demands
- small SA:Vol
- hormones made in one place needed in another
- removal of waste
- transport of digested food to respiring cells
2
Q
single circulatory system
A
- blood pumped through the heart one for every complete circuit
3
Q
double circulatory system
A
- blood pumped through the heart twice for every complete circuit
4
Q
closed circulatory system
A
- blood contained in vessels
5
Q
open circulatory system
A
- blood in haemolymph
