So, you are walking in the park and at the side of the trail, you spot a bird’s nest. Upon inspecting it closer, you find that the eggs have unusual colors – they are blue. You then ask yourself what birds lay blue eggs?
What birds lay unfertilized eggs? How big can an ostrich egg get? What is the longest living bird species? How big is a emu egg? What is the fastest bird? What is the biggest theropod? What is the smallest bird of prey in the world?
What are the five mammals that lay eggs? What birds lay unfertilized eggs? What animal species are the only living monotremes? What male animals give birth? What kind of birds lay their eggs on the ground? What animals have periods?
文章介绍了鸟 的繁殖、鸟的羽毛及鸟嘴有关的知识 sit on eggs until young birds are born do not make milk lay eggs must bring food to young birds useful to birds What birds help them stay warm feathers look like allow most birds to fly use beaks to get and eat food some birds: straight...
根据前一句“Most birds lay eggs in a nest.(大多数鸟在鸟窝里下蛋。)”可知,红颈夜鹰下蛋的地方应该与大多数鸟类不同。故此处应该填入一个与红颈夜鹰下蛋有关的句子。结合选项可知,只有B项“But this bird lays eggs on the ground!(但是这种鸟在地上下蛋!)”符合要求,故本题答案为B。18.【答案】D【...
A fly flies.苍蝇会飞。 So do butterflies, ladybugs, dragonflies, and bees.蝴蝶、瓢虫、蜻蜓和蜜蜂也都会飞。 But these are not birds.但它们不是鸟类 They are insects.它们是昆虫。 Many insects fly.很多昆虫都会飞。 Not as fast as birds, not as far as birds, but many insects fly...
No, some birds, like ostriches, are flightless. 10 Do ducks migrate? Many duck species migrate seasonally. 10 Do all birds lay eggs? Yes, all bird species lay eggs. 9 Are birds warm-blooded? Yes, all birds are warm-blooded. 9 Do birds have feathers? Yes, all birds have feathers. 9...
Mammals are warm-blooded vertebrates with hair and mammary glands; birds are feathered vertebrates with beaks and lay hard-shelled eggs.
All she-birds lay eggs and most birds build their homes. Birds-like people-are"warm-blooded". Their body temperature stays about the same no matter how hot or cold the air is.Why do birds have feathers?Feathers help a bird to keep warm. In cold weather, their feathers act as a ...
【题目】You probably already know what a bird looks like.Lots of birds are beautiful. Some people keep birds as pets because of their beauty. Let's learn more about what birds look like.Birds often lay eggs. One bird will usually sit on their eggs to keep them warm. It sits on the ...