听写填空,只写填空内容,不抄全文,4个单词/词组+1个句子,不用写标号~

Scientists have noticed that ants tend to specialize in jobs within their colonies. Biologist Anna Dornhaus at University of Arizona wanted to know if this makes ants more [---1---], or less. EarthSky's Linzy Paterson spoke to Dornhaus.

In her lab, Anna Dornhaus studied rock ants. She put them through [---2---] experiments to figure out how they do work.

And what happened in the experiments?

In one Dornhaus forced the entire colony to move to a new [---3---] nest. There were certain ants that specialized in carrying the larvae – that's the only job they did. But there were others that would carry the larvae, and also did other jobs, at other times. When she compared the two, Dornhaus found that the ants that specialized were not doing their job any faster or better than the other ants.

Basically, ants that specialize aren't any more efficient than ants that do every job.

Right, and when the specialized ants don't have a job to [---4---], they don't do anything. Over 70% of the nest is not active at any one time.

What's happening? Are the ants just lazy?

Not exactly. [---5---]

Thanks Linzy. I am Deborah Byrd from E&S, a clear voice for science. We are at E&S. org.

【视听版科学小组荣誉出品】
efficient a series of artificial accomplish Dornhaus figures there must be a benefit to this behavior - we just don't know what it is.
1. efficient adj. 有效的，效率高的 2. a series of adj. 一系列的 3. artificial adj. 人造的 4. accomplish vt. 完成，实现 【视听版科学小组荣誉出品】 以上仅供参考,欢迎大家参与讨论~