A. The ability to live independently without any cooperation among cells B. The development of specialized cells for different functions C. A decrease in the overall complexity of the organism D. The loss of the ability to reproduce 相关知识点: 试题...
Life on Earth-Fresh Clues hint at how the first living organisms arose from inanimate matterRicardo, AlonsoSzostak, Jack WRicardo, A.; Szostak, J. W. Life on Earth: Fresh Clues Hint at How the First Living Organisms Arose from Inanimate Matter. Sci. Am. 2009, 301, 54-61....
"In that way, it's a robot, but it's also clearly an organism made from frog cells." The researchers found that the xenobots could replicate(自我复制). But it happened rarely and only in specific circumstances. The xenobots used "kinetic replication"—a process that is known to occur at...
when used by itself,it would not describe any one organism.When the genus is also given,however,as in Canis familiaris,we know that the name refers to a specific organism:the domestic dog.""当单独写的时候,这个特定的名字是没有意义的,因为不同属的许多不同物种有相同的特定的名字……当单独...
Rich nations’ fixation on forests as climate offsets has resulted in the needs of those who live in or make a living from these resources being ignored. A broader view and more collaboration between disciplines is required. Editorial15 May 2024 Nature Advancing ocean equity at the nexus of ...
7. I had a great first impression of American people. 我对美国人民有了很好的第一印象。 8. We have lots of confidence in our ability to solve any problem. 我们对自己解决问题的能力有足够的信心。 9. With the rapid development of modern technology, the Internet has become a necessary part ...
that evolution is not goal-directed: "It is random, the route forged by happenstance" (p. 57). It has proven hard to let go of the Scala Naturae, the idea of a linear series of improvements, "like an assembly-line through time" (p. 120) leading ultimately to the perfect organism: ...
The one factor thatbiologists argue is critical for life as we know it is water in liquid form—a powerful solvent capable of transporting dissolved nutrients to all parts of an organism. In our own solar system we've known since the Mariner 9 Mars orbiter mission in 1971 that water once ...
which can grow up to almost 30 metres in length and weigh over 130,000 kilos. The toughest species is probably the water bear. This tiny organism can survive temperatures from 150℃ to a below freezing -272℃. To best survive in their environment, each species has developed its own unique...
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