2022考研英语(一)真题及解析
the term “plant neurobiology”was 1 around the notion that some aspects of plant behavior could be 2 to intelligence in animals.3 plants lack brains, the firing of electrical signals in their stems and leaves nonetheless triggered responses that 4 consciousness, researchers previously reported.But such an idea is untrue, according to a new opinion article.Plant biology is complex and fascinating, but it 5 so greatly from that of animals that so-called 6 of plants intelligence is inconclusive, the authors wrote.Beginning in 2006, some scientists have 7 that plants possess neuron-like cells that interact with hormones and neurotransmitters, 8 “a plant nervous system, 9 to that in animals,”said lead study author Lincoln Taiz, “They 10 claimed that plants have brain-like command centers at their root tips.”This 11 makes sense if you simplify the workings of a complex brain, 12 it to an array of electrical pulses;cells in plants also communicate through electrical signals.13 , the signaling in a plant is only 14 similar to the firing in a complex animal brain, which is more than “a mass of cells that communicate by electricity,”Taiz said.“For consciousness to evolve, a