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The answer is 2 blowholes for whales.

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What makes up a gray whales respiratory system?

A gray whale's respiratory system consists of blowholes located on the top of its head, which it uses to breathe air at the water's surface. The blowholes connect to the lungs, allowing the whale to exchange gases necessary for respiration. Gray whales are mammals and require oxygen from the air to survive.


Is the killer whale a baleen or toothed?

The killer whale is a toothed whale, not a baleen whale. Killer whales have a diverse diet that includes fish, seals, and even other whales, and they use their teeth to catch and consume their prey.


How is order cetacea organized?

Order Cetacea is organized into two suborders: Mysticeti (baleen whales) and Odontoceti (toothed whales). Mysticeti includes whales that filter feed using baleen plates, while Odontoceti includes whales with teeth for hunting. Each suborder further divides into families, genera, and species based on specific anatomical and genetic characteristics.


Why do whales need blowholes?

They need a blowhole to breathe with. They come up to the surface out of the water and "breathe in air" through the blow-hole. Then they can go back down into the water for a period of time until they need to re-surface for more air.


How do whale sense sound waves?

Whales sense sound waves through a fatty, oval shaped organ located in the forehead of all odontocetes (toothed whales). It is believed to be a bioacoustic component, meaning it focuses echolocation so as to use the least amount of energy to communicate.