There is not a noticeable difference in male and female goldfish in terms of size. In a pond, goldfish can grow to be 2 to 10 inches on average and weigh around 5 to 9 pounds. They may grow even larger in the wild, up to 14 inches, with adequate space and resources. Aspet fishin...
there is one final way to tell flowerhorn male and female differences. This involves looking at the vent or anal pore beneath the anal fin. You might be able to see the anal pore when your fish is resting. The indentation for a male flowerhorn fish has a shape like the letter V. Fema...
Without question,male and female fish are hard to tell __a.from b.with c.apart d.them 答案 答案:c核心短语/词汇:without question:毫无疑问翻译:毫无疑问,雄鱼和雌鱼是很难区分的。解析:此题考查固定搭配tell apart,意思是“区分;分辨”,符合题意。故答案为c项。 结果二 题目 Without question,male an...
aMale and female fish are hard to tell. 马累和母鱼是坚硬知道。[translate]
Fish is expected to avoid trying to cross through the transparent barrier to achieve food (reward), thus showing inhibitory control by recovering the learned detour with the opaque apparatus. Both males and females learned to detour the transparent barrier with similar scores of correct responses, ...
male and female fish are hard to tell apart 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译! 翻译结果1翻译结果2翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 男性和女性的鱼是很难分辨...
Channel catfish Ictalurus punctatus have an XX female-XY male genotypic system of sex determination, and male channel catfish grow faster than females. Through selective breeding and appropriately timed hormone administration, we have produced phenotypic male channel catfish with a YY sex genotype and...
CHICAGO, July 23 (Xinhua) -- Researchers at the University of Illinois (UI) found in a study that the male-to-female sex-change for anemonefish occurs first in the fish's brain and only later involves the gonads, sometimes after a delay of months or years. ...
Speciation by sexual selection is commonly modeled as the divergent co-evolution of male signals and female preferences in geographically isolated populations. Upon secondary contact, females fail to recognize divergent males as suitable mates and exhibit a strong preference for their own type. The resu...
There are physical differences between the male and the female mosquito. However, you cannot notice them with a naked eye; you will need a magnifying glass. One difference is in their proboscis, which they use to feed. For males, the proboscis is feathery and bushy and is also not strong...