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...
You can find these amphibians are found all over the world, from tropical rainforests to backyard ponds. But what do frogs eat?
Do you know frogs (青蛙)? You may think that all kinds of frogs live in the water. But this is a special kind of frogs. It has red eyes and it lives in trees. You can call them red-eyed tree frogs. These beautiful frogs live in warm, wet forests. A mother frog lays her eggs...
Without the sun, plants can't get the food they need to grow, reproduce and survive. Unlike animals, plants are autotrophs, meaning they create their own food source. They use energy from light or from the sun, water and gases from the air to create glucose. This process is photosynthes...
1. Do you turn off the water tap when you brush your teeth? ♥Always ♣ Often ♦Once in a while ♠ Never 2. Do you take a bath instead of taking a quick shower? ♥Always ♣ Often ♦Once in a while ♠...
There?s nothing quite like falling sound asleep after a full day of work. Like people,animals need to rest after working hard. Some animals sleep in water. Others dig holes under the ground. Some even sleep high in trees or under leaves. But they all find a way to rest. Some animals...
“Fish are terrible. They are boring and we need to change the water often,” says Mom.Tina sees a white rabbit. “How about it It looks cute.”“Rabbits can go into the garden and eat our vegetables,” Mom says. “Oh, look! The cat is smart. How about keeping it Cats are good...
There, frogs and many fish hide under rocks or fallen leaves. Cold water holds more oxygen than warm water, and frogs can breathe through their skin. Every type of insect has its own life cycle and that is the way it grows and changes. Different insects spend the winter in different form...
However, one of the favorite groups of monkeys to find here in abundance are the pygmy marmosets, which are the smallest monkey in the New World. Other wildlife of the reserve include a number of poison dart frogs, fantastic birdlife, black caiman, tamandua anteaters, and much more.The ...
2.Why did the villagers agree to sell frogs? A. The frogs were easy money. B. They need money to buy medicine. C. They wanted to please the visitors. D. The frogs made too much noise. 3.What might be the cause of the children’ s sickness? A. The crops didn’t do well B. ...