D. The new plants are genetically identical to the parent plant. 相关知识点: 试题来源: 解析 D。解析:无性繁殖的特点是新植株与母株在基因上是完全相同的。选项A,无性繁殖不需要两株亲本植物,只需要一株,所以A错误。选项B,因为新植株与母株基因相同,所以不会有基因多样性,B错误。选项C,无性繁殖不涉及...
B。解析:When plants reproduce asexually through runners, new plants grow from underground stems that spread out from the parent plant. Option A is related to sexual reproduction as it involves seeds. Option C is about pollination which is part of sexual reproduction. Option D is also about sex...
解析 B。解析:草莓(Strawberry)可以通过匍匐茎(runners)进行无性繁殖,这种繁殖方式有助于它快速蔓延和适应环境。橡树(Oak tree)主要通过种子进行有性繁殖。向日葵(Sunflower)也是通过种子繁殖,属于有性繁殖。百合(Lily)通常通过鳞茎或种子繁殖,不是以发送匍匐茎这种无性繁殖方式为主,所以不选A、C、D。
Grafting has long been used to produce novel varieties of roses, citrus species, and other plants. Ingrafting, two plant species are used; part of the stem of the desirable plant is grafted onto a rooted plant called the stock. The part that is grafted or attached is called thescion. Bot...
Most flowering plants grow from seeds, but why do plants produce so many seeds? The rigors of the terrestrial environment mean that many plants will not be able to reproduce [music out]. By making a large number of seeds, plants increase the chances that some of them will survive and repr...
A. it needs a lot of energy. B. it can produce many offspring quickly. C. it always results in weak offspring. D. it requires two different parents. 相关知识点: 试题来源: 解析 B。解析:通过出芽(budding)进行无性繁殖的好处是可以快速产生许多后代,这有助于植物在适宜的环境中快速繁衍和适应。
For plants, reproduction without sex may be better: a better understanding of how plants reproduce asexually by apomixis may boost efforts to develop improved crops. (Plant Biotechnology)Anne Simon Moffat
How do most plants reproduce sexually? A. By spores B. By seeds C. By cuttings D. By runners 相关知识点: 试题来源: 解析 B。本题考查植物有性繁殖的常见方式。大多数植物通过种子进行有性繁殖,A 选项孢子常见于蕨类等植物,C 选项插条和 D 选项匍匐茎通常是无性繁殖的方式。
Whereas male flowers produce an average of 12 stamens spiralling into the centre of the flower, female flowers typically initiate a few staminodes just inside the tepals, but carpel initiation replaces staminode initiation as organ development proceeds towards the centre of the flower52 (Fig. 1...
百度试题 结果1 题目(c)Plants are not the only organisms that reproduce asexually.Name two other groups of organisms that also reproduce asexually.1 bacteria;12fungi;■■■I[2] 相关知识点: 试题来源: 解析 bacteria;fungi; 反馈 收藏