In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?
A. Pisces and amphibians
B. Amphibians and reptiles
C. Amphibians only
D. Pisces only
Answer:D
In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?
A. Pisces and amphibians B. Amphibians and reptiles C. Amphibians only D. Pisces only
Explanation: This is because of single circulation where deoxygenated blood from all part of the body is pumped into heart. From heart it is pumped to gills where it gets oxygenated and gets transferred to all parts of the body. Hence it proves pisces will not receive oxygenated blood.