初中河南省2024年中考导航冲刺押题卷(十)10答案(英语)正在持续更新，目前2026天舟高考答案网为大家整理了相关试题及答案，供大家查缺补漏，高效提升成绩。

本文从以下几个角度介绍。

1、河南省2024年中考导航冲刺押题卷四
2、河南省2024年中考导航冲刺押题卷道德与法治
3、中考导航模拟冲刺卷2024河南
4、2024年河南省中招导航押题试卷b
5、2024年河南省中招导航押题试卷a
6、2024年河南省中招导航押题试卷a英语
7、河南省2024年中考导航冲刺押题卷2
8、河南省2024年中考导航冲刺押题卷二
9、河南省2024年中考导航冲刺押题卷5
10、河南省2024年中考导航冲刺押题卷10

DIn 1837,Darwin sketched a"tree of life"in his notebook,12 years before the publicationof his Origin of Species.Since then,the tree has been routinely used by biologists to explainhow new species emerge from a common ancestor.But some scientists believe that new speciescan also arise from two parental species combining their genomes().Now there is proofToday,scientists report in the journal Nature that the Amazonian butterfly speciesHeliconius elevatus arose from the combining of two others.By comparing the geneticblueprints of other butterfly species,researchers led by Harvard University research associateNeil Rosser,demonstrated that the H.elevatus genome is a mixture of 1 percent of thespecies H.melpomene and 99 percent of H.pardalinus.Two decades ago,Mallet realized that all the close relatives of H.elevatus wore a patterncalled"tiger mimicry ring".H.elevatus,on the other hand,wore a"nailhead ray"outfit thatwas only shared by H.melpomene,a distant relative.It was as if H.elevatus showed up atthe family reunion wtth an outfit borrowed from a stranger.This was a smoking gun that H.elevatus was a hybrid()species,but Mallet had to wait for two decades for genomicdata to confirm his suspicion.While Mallet and colleagues gathered genomic sequences of Heliconius butterflies.Rosserset up butterfly cages to observe H.elevatus behavior.The combined effort of Mallet'sgenomic sequencing and Rosser's behavioral studies led to the discovery of key regions in theH.elevatus genome associated with color pattern,host plant preference,and matingpreference.To Rosser and Mallet's surprise,all of these crucial genes came from H.melpomene.Although only 1 percent,of the H.elevatus genome comes from H.melpomene,theseare spread across the H.elevatus genome in 44 independent "genetic islands",and controlcharacteristics crucial to species identity.Both Mallet and Rosser think there are many more hybrid butterfly species out there.Tofind these hybrid species,people need to start gathering genomic data for all butterflies.32.What implication does the discovery of H.elevates have?A.It discredits a theory.B.It explains a phenomenon.C.It justifies an assumption.D.It corrects a misconception.33.Which is hard evidence indicating H.elevatus is a hybrid?A.Its body size.B.Its behaviors.C.Its color pattern.D.Its mating preference.34.What did Mallet and Rosser do about H.elevatus in the two decades?A.They preserved its key habitats.B.They disclosed its real identity.C.They changed its genetic mechanism.D.They identified its unique characteristics.英语试题第7页（共12页）