However, many species of tephritid fruit flies are generalists utilising larval hosts across two or more plant families. Focusing on the genus Bactrocera, it is argued that this high frequency of generalism is due to four evolutionary drivers which both decrease the need for specialism and promote...
There are consequences of living big. As middle-class houses have grown larger, two things have happened. First, large houses take time to maintain, so cleaners and other low-wage service workers are required to keep thes...
The problem isn’t just a lack of toilets—it’s a lack of toilets that people want to use. The result: millions of deaths and disease-stunted lives.
There is immense concern about economic inequality, both among the scholarly community and in the general public, and many insist that equality is an important social goal. However, when people are asked about the ideal distribution of wealth in their country, they actually prefer unequal societies...
that is definitely one of the interesting aspects of having an aircraft is that you're not physically static. you maybe can use your propulsion system to try and clean off your solar panel, but, but we'll see work to go when ingenuity flies again, it'll kick off its operational ...
10.What is in the box?语法点二Ⅰ.1.is 2.has 3.drinks 4.tidies 5.washes 6.matches 7.guesses 8.studies 9.teaches 10.carries 11.stays 12.goes 13.finishes14.catches 15.does 16.watches 17.cries 18.flies 19.makes 20.shinesⅡ.1.C 2.D 3.A 4.B 5.AⅢ.1.keeps 2.cries 3.watch ...
When Wang Bing wants to eat it, a fly(苍蝇)flies to ice cream. “Drive off the fly,” says his father, “ very dirty.” Wang Bing says a smile,“You don’t let me skate, can you let him skate for a while ?” 【1】A. good B. well C. fine D. bad 【2】A. see B. see...
Riley flies west to scout games. That first night, he stops over in Malibu before a flight to Sacramento in the morning. He lounges on the deck. The clock on his phone says 4:48 p.m. It's the "golden hour," as he calls it, which usually means he turns on the "R&B 2" play...
As the air cools and sunlight decreases each fall,thousands of western monarch butter-flies(帝王蝶) return to California to spend winter.One of the best places to watch the colorful scene is Pismo Beach. From now through February,over 10,000 will fly ...
If it's something small like a single lost wasp or a handful of fruit flies congregating around your kitchen sink, consider tackling the problem yourself. Sometimes a few strategically placed fly traps may be all you need. Drain flies, for example, which can be as frustrating to deal with...