Animal circulation and respiration

Question 1

circulatory fluid

Answer 1

hemolymph

Question 2

heart contraction pumps fluid through vessels

Answer 2

into open sinuses around organs

Question 3

arteries

Answer 3

carry blood from heart to organs

Question 4

in single circulation

Answer 4

blood is pumped a single time for each trip around the body

Question 5

heart has two chambers

Answer 5

atrium- collects returning blood
ventricle- pumps blood out of heart

bony fishes, rays, sharks

Question 6

in double circulation

Answer 6

blood is pumped twice for each trip around the body
1- to respiratory surface, picks up oxygen
2- oxygenated blood returns heart, pumped again to body organs

Question 7

double circulation may involve a

Answer 7

3-4 chambered heart