句意:他学植物学,___植物科学。or或者,表选择或条件;and和,表并列或顺承;so因此,表因果关系;but但是,表转折关系。该句学生看到前句中的botany会误以为后半句是并列的关系而错选B。其实在这个句子里,后半句是对botany的一种解释说明。or可以表示同位关系或一种改换的说法,意为“即;或者说”。故选A。反馈...
oo. For example, students study the plants they grow in science classes. Many also become a tool for planning the garden. Studies have shown that schools' gardening programmes help students do as better in schoolSchools' gardening programmes offer learning experiences as well as fun. Young garden...
◆单句填空②WhenDennisXXXiamsreceivedatextthatclearlywasn'tintended(intend)forhim,hedidsomethingspecial.(202X课标全国Ⅲ)③ThejourneywasintendedtoachievemorethanwhatCaptainRobertFalconScotthaddone.(202X课标全国Ⅱ)④Scientistsfindfromtheirstudiesthatplantscantalktooneanother intentionally(intention).◆完成句子⑤这项...
natural history - the scientific study of plants or animals (more observational than experimental) usually published in popular magazines rather than in academic journals scientific theory - a theory that explains scientific observations; "scientific theories must be falsifiable" discipline, field of study...
By plant cloning we have a population of identical plants and all these plants equally suffer from the same diseases,but in nature the weak would die and the strong would survive.While there are some dangers to consider with plant cloning,there are plenty of benefits that could prove vital ...
So far, this technology has been used to produce plants which are better able to defend themselves against pests and disease. Supporters of GM food 2/7 真诚为您提供优质参考资料,若有不当之处,请指正。 argue that GM plants are healthier and have larger harvests. While there has ...
Doudna and Charpentier got the prize because they developed CRISPR/Cas9 genetic scissors, a technology that can rewrite DNA in the cells of plants, animals and micro-organisms. It has had a “great effect on the life sciences,” according to the Royal Swedish Academy of Sciences. For example...
a.a recent cambridge university analysisof 76 studies involving more than 650,000 peopleconcluded,“the current evidence does not clearlysupport guidelines that low consumption of total saturated fats.“yet the american heart association(arial,in its most recent dietary guidelines,heldfast to the idea...
Restoration of vegetated ecosystems has traditionally adopted a bottom-up framework (i.e., the “Field of Dreams” hypothesis), which posits that plants (and subsequently higher trophic levels) will recover through natural plant propagation if the cause of degradation (e.g., tree logging, farming...
Emotional responses in monkeys differ depending on the stimulus type, sex, and neonatal amygdala lesion status Yet, most of that knowledge comes from studies in adult humans and animals with a fully developed amygdala. Given the considerable protracted postnatal ... A Medina,J Torres,AM Kazama,....