There are many differences between sexual reproduction and asexual reproduction. Sexual reproduction needs two ___. A. parents B. offsprings C. seeds D. spores 相关知识点: 试题来源: 解析 A。本题考查生物生殖相关词汇。有性生殖需要两个亲本(parents),无性生殖不需要。offsprings 是后代,seeds 是...
There are two methods by which living things reproduce--asexualor sexual. Asexual reproduction allows for a living thing to reproduce without another member of its species, while sexual reproduction requires genetic material from two different members of the species, usually but not always, a male ...
Insects are animals. Like all animals, insects are multicellular organisms that respire using oxygen, reproduce sexually, eat and move. Insects belong to the animal class Insecta, which, with around one million living species, is by far the biggest class within the animal kingdom. Insects make ...
While it may only be a vaguely similar process to the sex participated in by humans and animals, plants engage in sexual reproduction quite often. There is a series of steps that plants go through to create offspring. It isn't the most romantic process, but it can be fascinating nonetheless...
While it may only be a vaguely similar process to the sex participated in by humans and animals, plants engage in sexual reproduction quite often. There is a series of steps that plants go through to create offspring. It isn't the most romantic process, but it can be fascinating nonetheless...
Or are there any animals that can defeat dinosaurs in modern times? In the dinosaur period, in fact, the body's evolution has almost reached the limit of the earth's world. In the long years, dinosaurs can be said to have made no progress. The result? Still destroyed. In this desperat...
3) What is the difference between the blastula and gastrula stages of development in most animals? 2) Contrast invertebrates with vertebrates 3) What is the difference between the blastula and gastrula stages of development in most animals?
Don't buy any of these excuses if some partner is trying to wriggle out of wearing one: You need to find the right size: A basic condom can stretch over someone's forearm without breaking. Certainly, condoms should be comfortable, but there is no need to buy into magnum marketing ploys...
This helped further to blot out the pain.) As the opiate started to wear off, and the pain returned, it occurred to me that Ingrid need not have given me such powerful pain relief – or, indeed, any at all. Maybe there was some remorse for the evil which she had actively ...
aAlthough there are differences,most resolutions have one thing in common. People hardly ever keep them ! Sometimes the resolutions may be too diffcult to keep. Sometimes people just forget about them. For this reason,some people say the best resolution is to have no resolutions! Hwo about ...