Question

Like humans, most species in the animal kingdom have a single heart. But there is an exception. How many hearts does an octopus have?
7
2
3
5

Answer 1

Like humans, most species in the animal kingdom have a single heart. But there is an exception, An octopus has 3 hearts.

Explanation:

• An Octopus is a cephalopod mollusc with eight arms, a soft body, strong beak-like jaws.

• An octopus has 3 hearts, 9 brains and blue colour blood.

• It has three hearts in which two hearts are used to pump blood to the gills while a third heart circulates blood to the rest of the body.

• They live in oceans, seas. An octopus can also change its colour. The scientific name of this marine animal is 'Octopoda'.

Answer 2

Answer:3

Explanation:

Octopuses have three hearts: one pumps blood around the body; the other two pump blood to the gills. The reason for this impressive cardiac hardware probably comes down to the unusual composition of their blood.