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?
题目Birds lay eggs to reproduce. What do mammals usually do to have babies? A. Lay eggs B. Give birth to live young C. Spawn D. Hatch from E. ggs 相关知识点: 试题来源: 解析 B。本题考查动物的繁殖方式。鸟类通常下蛋繁殖,而哺乳动物通常是胎生,即生下幼崽。选项 A 是下蛋,是鸟类的繁殖...
题目Birds lay eggs to reproduce. What animal gives birth to live young? A. Dog B. Snake C. Frog D. Butterfly 相关知识点: 试题来源: 解析 A。狗是哺乳动物,会直接生下幼崽。蛇、青蛙和蝴蝶都是卵生动物,通过产卵繁殖后代。反馈 收藏
Even now many species still lay eggs in this sort of crude nests, in fact every spring a mother killdeer lays her eggs in some pebbles along the edge of the parking lot just outside this building (14). Primitive nests on the ground were fine for some birds but others began to elevate...
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...
Birds build nests to lay eggs and raise their young. What is the main material birds use to build nests? A. sticks and grass B. flowers and leaves C. rocks and sand D. water and mud 相关知识点: 试题来源: 解析 A。本题考查动物习性。鸟类通常用树枝和草来筑巢。
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...
BWhat is a bird?Any animal that has feathers is a bird.All birdshave two wings and two legs.Modern birds have noteeth,but they have a hard mouth part.It helps themcatch and eat their food.All she-birds lay eggs andmost birds build their homes.Birds-like people-are“warm-blooded'.Th...
Bird eggs are an important step in the process of reproduction of birds. Instead of developing fertilized ova internally like mammals do, birds lay eggs which consist of an ovum protected by a hard outer shell. If the ovum has been fertilized, it will develop into an embryo which will event...
私存禁用电器除没收物品外,给予( )处分;违章用电、用火、使用危险品者,给予( )及以上处分;损坏和擅自挪用、拆除、停用消防设施、器材包括在寝室私接电线,私拆或使用走廊应急灯等是违背《中华人民共和国消防法》的行为,视情节给予( )及以上处分;引起火警、火灾者或其他严重后果,除赔偿损失外,视其危害程度,给予(...