Answers

2015-07-13T18:02:01+08:00
Closed transport system-- appear in humans which is faster than open transport system.
Open transport system-- common in arthropods and grasshoppers, which is slower.

1 5 1
not mentioned. pulmonary circulation, systemic circulation, coronary circulation.
2015-07-13T18:03:03+08:00
Brain
Spinal Cord and
Heart
0
the heart,blood and blood vessels
ok :)