题目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。
How Sexually Experienced Are You?Describes noteworthy sexual experiences of women. Loss of erotic virginity; Total surrender of sexuality to partners; Performance of socially risky sex.Ingall, MarjorieGlamour
Conidia are asexually produced spores that are borne externally to the cells that produce them. ... The conidia of these fungi not only germinate and produce
IMDb is the world's most popular and authoritative source for movie, TV and celebrity content. Find ratings and reviews for the newest movie and TV shows. Get personalized recommendations, and learn where to watch across hundreds of streaming providers.
Amphibian reproduction has more in common with that of fish than it does of mammals or even reptiles. While all of these animals reproduce sexually (meaning that the species consists of males and females and mating involves the fetilization of eggs by sperm), reptiles and mammals reproduce throu...
primitive cell signaling beginning 3.5 to 3.8 billion years ago in the first single-celled organisms (prokaryotes, namely bacteria and archaea, which reproduce asexually by simple cell division); followed around 2 billion years ago by larger, relatively more complex single-celled organisms...
Do saguaro cactus reproduce sexually or asexually? Cacti are flowering plants, which means that they rely heavily on pollination of their blooms to reproduce. Like other plants, theyreproduce sexually, depending on the pollen or sperm from their flowers to reach the stigma or female sex organs,...
In plants, it is carried out in the following ways: Apomixis: Apomixis refers to how a new plant develops without the involvement of gametes or fertilization. Because apomixis does not involve gametes, the possibility of evolution is remote. ...
The article describes a clinical sample of 87 boy victims of child sexual abuse and compares them to 226 girl victims. Boys were on average 6.3 years of age at onset of the sexual abuse; girls were 5.5 years. Boys were more likely to be victimized by someone outside the family than girl...
known for, while males often grow large, well-developed eyes and big nostrils. Males also lose their normal teeth and grow a set of pincerlike "denticles," which are toothlike projections that sit at the front tips of their jaws, and as it turns out, are absolutely necessary for mating...