Question

The respiratory organs in aquatic whales are
A. Gills
B. Lungs
C. Teaches
D. Skin

Answer 1

Hint: Dolphins have one blowhole and large whales have two blowholes and a dolphin surface for air and exhales the breath. This process takes a fraction of a second. Closely we are able to hear dolphins ‘blow’. Dolphins are mammals and breathe through the lungs just like humans.

Complete answer:
Dolphins not able to breathe through their mouth, dolphins exposing the top of their heads to the air while they are resting under water or swimming. After each breath the water cannot get into the dolphins lungs because they are sealed tightly by strong muscles. The spray of the water out when the dolphin forcefully breathes out and clear water from the blowholes present on the top. Water sitting on the top of the blowholes but not coming from the dolphins lungs.
In 2016 dolphins caused a damaged blowhole if he breathed through his mouth, which was discovered by scientists in New Zealand. Dolphins breathe about 4 to 5 times every minute but are also able to hold breath for several minutes such as Cuvier’s beaked whales and sperm whales also famous as deep diving whales and hold breath for 137 minutes. Dolphins have high amounts of hemoglobin and myoglobin present to store muscles and blood and help to reduce their heart rate and shut down some organs during deep dive.

Therefore the correct option is (B).

Note: Whales are mammals and not fish and cannot breathe underwater so their breathing organs are lungs but in the fishes the breathing organs are gills that help to breathe underwater. Whales take breath and fresh air on the surface and also hold their breath for several minutes. If water is inhaled by the whale's blow whole and enters the lungs and causes the whale to drown into the water.