Question

The blood goes only once through the heart in this during 1 cycle of passage through the body
a. frog lizard
b. whale chameleon
c. labeo salamander
d. shark hippaocampus​

Answer 1

Answer:

frog lizard is the right answer

Answer 2

Answer:

Hippocampus, exocoetus, anabas

In the single circulatory system, the blood passes the heart only once during the circulation. Single circulation systems consist of blood, blood vessels and a heart which receives de-oxygenated blood from the atrium and pumps it through the ventricle so that it continues onwards to the gills.

The de-oxygenated blood is oxygenated as it passes through the gill capillaries which are tiny blood vessels whose walls are so thin that the waste product carbon dioxide can be released from the de-oxygenated blood and oxygen accepted into the blood before the blood moves onwards through the blood vessels throughout the rest of the animal's body.

So, the correct answer is option B.