whales aremammals, not fish. There are only 83 species of cetaceans in the world organized into 14 families and two main subcategories: Toothed whales (Odontoceti, including killer whales, narwhals, dolphins, and porpoises) andbaleen whales(Mysticeti, humpback whales, and rorquals). Toothed ...
不对。改为：Are whales fish or mammals?鲸鱼是鱼还是哺乳动物？望采纳
078WhalesWhales are mammals.They breathe air like us.They rise tothe surface of the water to breathe.They live in the oceans.Whales leap out of the water.They also dive and roll.Whalesdive to get food.There are many different kinds of whales.They are some of the largest animals.The ...
Whales use sound to sing and hunt. The sound can help whales find other fish or animals and tell the direction. For example, they send out a sound and then listen. The sound waves come back and give them a picture of the things around them. About mammals, which of the following is N...
Whales look like the biggest fish in the world, but they are not fish. They belong to(属于)mammals(哺乳类动物). People are mammals, too, like dogs and cats. That means they do not lay eggs. They have live babies and feed them milk. Whales are very big. They have lungs and breathe...
They look like fish. They swim like fish, (A) they aren't fish. They are mammals(哺乳动物). They give birth to live young and feed them with milk.Whales can't stay under the water all the time. They (B) have to come up for air from time to time. They breathe through blowholes...
Whales are not fish, but the largest mammals(哺乳动物) on the Earth. A whale has one large mouth, two eyes, one or two blow holes on its back fin, two flippers and one tail. whales live in the ocean. There are different kinds of whales. Here are some of them. Sperm WhaleKiller ...
of…的。根据下文the mammals of the sea have developed the ability to hold their breath underwater for an amazingly long time.可知是很长一段时间以来,海洋哺乳动物已经发展出在水下长时间屏气的能力。for ages很长时间、很久,故答案选C。【小题4】句意:首先,在数百万年的时间里,他们中的许多都进化出...
The meaning of WHALE is any of various very large, aquatic, marine mammals (order Cetacea) that have a torpedo-shaped body with a thick layer of blubber, paddle-shaped forelimbs but no hind limbs, a horizontally flattened tail, and nostrils that open ext
[C]Whales are not fish, but the largest mammals (哺乳动物) on the Earth. A whale has one large mouth, two eyes,one or two blow holes on its back fin, two flippers and one tail. Whales live in the ocean. There are different kinds of whales. Here are some of them.Sperm Whale Ki...