Scientists who study insects(昆虫)said that 30 years ago,there were about twice as many butterflies as there are today.Where have all the butterflies gone? How many butterflies arethere today? Why does the number of butterflies reduce?No one hurts butterflies on purpose. Still, scientiststhink ...
Farmers use pesti-cides to kill harmful insects. Pesticides protect crops,but sometimes they are harmful to those helpful insects such as caterpillar. Caterpillars turn into butterflies.2.Luckily, there are ways that kids and adults can help. Do you want to help save our butterflies?3. Make s...
After all, when people are sick, they want to stay at home. Caron guesses that sick bees may have difficulty figuring out where their homes are. “Another cause may be some chemicals that farmers use to kill unwanted insects on crops.” says Jerry Hayes, who works at the Florida Departmen...
“Another cause may be some chemicals that farmers use to kill unwanted insects on crops.” says Jerry Hayes, who works at the Florida Department of Agriculture. 1. What makes the scientists in trouble now? A.Bees are going to die out in the United States. ...
Scientists who study insects have a teal mystery on their hands. All across the country,honeybees are 1eaving their hives and never returning. Researchers call this phenomenon colony—collapse disorder. According to surveys of heekeepers across the country,25 to 40 percent 0f the honeybees in...
Entomologists, scientists who study insects, are working with other scientists to learn why bee colonies (群体) are dying in the United States. They call the problem “colony collapse disorder."Amateur beekeepers in Fort Wayne, Indian a are working to learn about honeybees and how to keep th...
“Another cause may be some chemicals that farmers use to kill unwanted insects on crops.” says Jerry Hayes, who works at the Florida Department of Agriculture. 1. The underlined part “this process” refers to ___. A. people’s care B. bees’ leaving their hives C. bees’ spreading ...
Scientists Study Secretions That Allow Termites to Blow Themselves UpByline: ScienceNOWWhen trekking through a forest in French Guiana to study termites, a group of biologists noticed unique spots of blue on the backs of the insects in one nest. Curious, one scientist reached down to pick up ...
plastic pollution: mealworm larvae that are capable of consuming polystyrene. They join the ranks of a small group of insects that have been found to be capable of breaking the polluting plastic down, though this is the first time that an insect species native to Africa has...
"Insects have traditionally been consumed across the continent. They have superior nutrients that are digested equally well by our bodies. But until now, insects have not been aptly mainstreamed into food-to-food bio-fortification," Kelemu said.■...