百度试题 结果1 题目( )3. Do dolphins lay eggs? A. Yes, they do.B. No, they don't.相关知识点: 试题来源: 解析 B 海豚是哺乳动物,它们像人类一样直接生下幼崽,而不是产卵。因此,正确答案是 B。反馈 收藏
A. The eggs need water to develop.(卵需要水来发育。) B. It's easier to lay eggs in water.(在水中产卵更容易。) C. Frogs like water.(青蛙喜欢水。) 相关知识点: 试题来源: 解析 A。青蛙在水中产卵是因为它们的卵需要水来发育。选项 B 和 C 不是主要原因。反馈...
A chicken (called a pullet until she is a year old), begins laying eggs when she is about 18 to 20 weeks old. Some breeds begin when they are older, however. Healthy chickens lay eggs most reliably in their first 2 to 3 years. After that, egg production will taper off. How Often ...
female frogs lay their eggs in a warm, wet environment, and the male frogs fertilize them with their sperm externally. However, a small number of species engage in internal fertilization.
Hens lay no more than one egg per day as the process of laying an egg is governed by the presence of sunlight. The lack of natural light during the winter months means that even fewer eggs are laid during this time of the year. Humans can, however, ‘trick’ chickens into laying despi...
What do frogs do in winter? A. They jump around actively. B. They lay eggs. C. They hibernate. D. They sing loudly. 相关知识点: 试题来源: 解析 C。解析:冬天青蛙会冬眠,这是青蛙应对寒冷冬季食物短缺的一种生存方式。hibernate表示冬眠,青蛙在冬季不会活跃地跳来跳去(jump around actively),...
Everyone knows that chickens lay eggs ().Most people know that all the other birds do as well. But have you ever thought about other animals that lay eggs? They include bees,snakes and some se a animals.When a mother lays eggs, many more babies can be born at once, or in a few ...
So how do chickens lay eggs? When a pullet reaches laying age, or a hen comes back into lay after a break, one by one the yolks mature, so at any given time her body contains yolks at various stages of development. Approximately every 25 hours, one yolk is mature enough to be releas...
Discover fascinating facts about shark eggs and the unique protective cases known as mermaid's purses. Learn about oviparous sharks and their reproductive behavior in this informative blog post."
With this renewed interest, you’re not alone in asking: How do chickens lay eggs? How Do Chickens Lay Eggs? The process is actually something of an oxymoron, elegantly simple and yet infinitely complicated. It’s one of the little miracles of nature; so, how do chickens lay eggs?