Passage 3Plants and animals are largely made of water. So are humans. They need to keep enough water inside them, or they could die.We get some of the water we need by eating food that has water in it. Drinks, such as milk and tea, are mostly water, too. A person needs water ev...
Biomass is anything natural, plants and trees mostly. It can be used to produce electricity. The trees that are knocked down by strong winds are burned to produce energy. Of course new trees are planted in place of the old ones, which also helps the environment.It's certainly sunny in ...
To approach a question 400 million years in the making, researchers turned to mudskippers, blinking fish that live partially out of water.
Minor languages are those that are mostly confined to one world, such as Halia, Lithuanian, or Sahaptin. Locomotion and Biomechanics Humans are natural endurance walkers, with long, efficient strides that cover ground quickly and efficiently with little effort. Bare skin with the ability to ...
根据第二段划线词的前面,Hamsters sleep during the day and are active at night.以及划线词的后面humans sleep at night and are active during the day.可知划线前说仓鼠白天睡觉,晚上活跃,划线词的后面说人类是白大活跃,晚上睡觉,因此前后是转折关系。 2.细节理解题。根据文章第三段可知一组的仓鼠是置于黑暗...
Other ants raise aphids(蚜虫), small insects that different from most kinds of produce a special thing like water. The ants take care of the aphids and animals.keep them nearby so the ants can drink the thing.Ants live mostly underground. Their homes are made of special tunnels(隧道) in ...
Free-living amoebae (FLA) exist independently in various environments such as soil and water and do not rely on human or animal hosts for survival. Opportunistic infections in humans are rare and are acquired accidentally, often with poor prognosis or fatal outcome. Pathogenic FLA species are ...
primates are omnivores, meaning they eat both plants and animals. But some species eat more meat than others. Tarsiers eat only meat, and some humans, such as those living in the Arctic, often get most of their calories from meat. Our extinct relatives, the Neanderthals, also ate mostly ...
This, along with electricity outages and pipe breaks, led to not only intermittent but also unpredictable water supply timings. Households did not know when water would turn on and for how long the supply would last. For some (mostly higher-income) residents with large storage tanks, this may...
Humans are unique among primates (灵长类) for our bodily hairlessness. In fact, only a handful of the 5,000 or so mammals — mostly species living in water such as whales and walruses (海象) — are not covered in heavy fur. Now, a controversial (有争议的) new theory suggests that ...