百度试题 结果1 题目Dolphins are ___. A. insects B. mammals C. reptiles D. amphibians 相关知识点: 试题来源: 解析 B。海豚是哺乳动物,选项 A“insects”是昆虫;选项 C“reptiles”是爬行动物;选项 D“amphibians”是两栖动物。反馈 收藏
百度试题 结果1 题目Dolphins are ___. A. mammals B. reptiles C. amphibians D. birds 相关知识点: 试题来源: 解析 A。海豚是水生哺乳动物,通过胎生繁殖后代。反馈 收藏
Dolphins are intelligent ___. A. bugs B. reptiles C. mammals D. birds 相关知识点: 试题来源: 解析 C。本题考查海豚的分类,dolphins(海豚)是哺乳动物,intelligent mammals 表示聪明的哺乳动物,bugs 是虫子,reptiles 是爬行动物,birds 是鸟。反馈
Dolphins are animals that live in the sea. Does that mean dolphins are fish? No, unlike manysea animals, dolphins are mammals, not fish. Fish have fins, while dolphins have flippers(鳍状肢).When fish swim, they move their tails from side to side. When dolphins swim, they move theirtail...
Some mammals have two arms and two legs. Marine mammals(海洋哺乳动物) that live in water, like whales or dolphins, have fins and a tail.Mammals all feed their babies milk. Other types of animals, like fish or reptiles(爬行动物) can't make milk. Mammals are warm-blooded, just like ...
Do bottlenose dolphins live in coral reefs? Is an elephant a vertebrate or invertebrate? Are porpoises benthic, plankton, or nekton? Are wolves invertebrates or vertebrates? Are bees invertebrates or vertebrates? Are sharks mammals, reptiles or amphibians?
Mammals are distinct frombirds,reptiles,amphibians,fish, andinvertebratesin three key ways. First, all mammals have fur or hair. In some species this presents as a very conspicuous, thick coat, whereas in others it may be less obvious.Dolphins, for example, are marine mammals and they are no...
Are amphibians and reptiles mammals? Is a turtle a reptile, amphibian or mammal? Are tortoises reptiles or amphibians? Is a hawksbill turtle an amphibian? Are fish mammals or amphibians? Are turtles in the phylum Chordata? Are birds mammals or amphibians?
Why Are Whales Mammals? Whales, and other, related aquatic mammals such as dolphins and porpoises, are descended from land mammals and possess all the characteristics necessary to identify them as being mammals rather than fish (or any other type of animal). ...
All mammals have some form of hair or fur during some period of their life. Some, like dogs and cats, are covered in fur throughout their life. Others, such as dolphins, have a light covering of hair early in development. Hair can provide camouflage, protection from the weather, and aid...