Capbrellas are s 46animals and live in large groups. A group usually has one father, one or two mothers and their babies. The members of the group are close to each other. Capbrellas are great swimmers. In fact, they spend lots of time in the water. The water keeps them cool ...
根据“ Humans don’t understand these sounds, but in their own social groups, whales understand...they’re saying to each other.”可知,此处缺乏引导宾语从句的连接词,这里表达的是鲸鱼能理解彼此之间在说什么,因此用连接词what“什么”。故填(w)hat。
Amphibians are animals that (27) their life in the water, breathing with gills. As they grow, they breathe air using lungs, and many (28) the land. Some amphibians include frogs, toads, salamanders, and newts. Reptiles are cold-blooded animals (29) scales, Some reptiles are: the dinosaur...
Belonging to the Lhoba, one of the smallest ethnic groups in China, Tashi hails from a village in Medog County in southwest China's Xizang Autonomous Region. The former hunter has transformed his cabin into a small museum displaying hunting and living items. The Lhoba ethnic group used to li...
The social life of many elephants revolves around herds and small groups. An elephant herd consists mostly of closely related female cows and their calves, which are led by a single matriarch who helps the entire group find food and water, avoid predators, and locate a shelter. The oldest da...
Lions are family animals and truly social in their own communities. They usually live in groups of 15 or more animals called prides. Prides can be as small as 3or as big as 40 animals. In a pride(一群), lions hunt food, raise little lions, and defend their territory(领 )together.In...
Groups of different animals have something to do with one another. The zebra and the example when tigers and sheep live in the same place, a certain number of tigers need to eat a certain number of sheep to live. This stops the number of the sheep from getting too big. Similarly, the...
Females, called does or nannies, live together with their children in large groups. These herds usually have a distinct hierarchy with a matriarch at the head. She has the responsibility to lead and protect the entire group. The male billy or buck, as it’s called, lives alone or in a ...
The principle behind the production of SPF animals is that to obtain animals from a stage in theirlife cyclewhen there is either minimum amount of contaminationor not at all.Caesarian sectiontechnique is used to obtain pathogen-free animals. Theplacentaacts as a very efficient barrier and it ...
Step 6. Work in groups In groups,the students make a story about how the baby hippo and the tortoise knew each other. The story must have a sad beginning and a happy ending . StudentA:Help ! Help! I feel terrible...