The extra genes allowed the apple to get used to worse conditions and go through a different development from peaches,strawberries and other related fruits.一、 Why were fruit flies used for the research? A. Because they have a similar diet to humans. B. Because they have a history as ...
He had seemed to oppose the windmill, simply as a manoeuvre to get rid of Snowball, who was a dangerous character and a bad influence. Now that Snowball was out of the way the plan could go forward without his interference. This, said Squealer, was something called tactics. He repeated ...
根据文中第二段The research chose fruit flies,as they share many genes with humans.(该研究选择了果蝇,因为它们与人类共享许多基因。)由此可知,C项,因为它们的基因与人类相似,符合题意。故选C。2. (2)段落理解题。根据文中第三段The scientists said that some dangerous...
B.Because they are easy to catch. C.Because they have similar genes to those of humans. D.Because they can live longer than other insects. 【2】What does the third paragraph mainly talk about A.How many groups the fruit flies are pided into. ...
Researchers believe that humans evolved the fear of spiders, insects, and snakes in order to avoid potentially dangerous encounters with these creatures. After all, many snakes and spiders possess venom that can harm humans. ... Instead our fear of bugs isclosely related to the feeling of disgu...
lived an average of 55 days-five days longer than the flies that were normally fed.The research group also found it easier for these flies to walk, climb and move about as they aged.The scientists said that some dangerous chemicals(化学物) in the flies'bodies would cause illnesses and ...
wholesale or retail wild animal business, those exhibiting wild animals to the public, and those using the animals for scientific or educational purposes. Animals including kangaroos, monkeys, foxes, wolves, crocodiles, alligators, and cobras are considered "inherently dangerous" to humans under state...
Are Mantises Aggressive Or Dangerous To Humans? Most of these bugs are rather friendly and curious and will walk on your hand if you just place your finger gently in front of the creature. They do not bite unless you squeeze or otherwise threaten them. ...
seems to be a cold may be the beginning of some more serious diseases. Virus travel from one person to another in many ways. Some diseases are carried by insects, such as flies and mosquitoes (蚊子). Larger animals can also carry diseases. People can get diseases from dogs or even rabbit...
wholesale or retail wild animal business, those exhibiting wild animals to the public, and those using the animals for scientific or educational purposes. Animals including kangaroos, monkeys, foxes, wolves, crocodiles, alligators, and cobras are considered "inherently dangerous" to humans under state...