How long does a slug take to die when sprinkled with salt?
2010年10月4日 · Salt on a slug will act immediately, drawing water out of the body, causing dehydration. The amount of salt used would determine the outcome. Slugs do have a simple protective reaction system, but they don't scream when salt is poured on them. Any hissing sound is caused by the action of the water being drawn out of the slug.
Can slugs and snails feel pain? | Questions | Naked Scientists
2012年6月17日 · Answer. I wasn't actually sure about the answer to this to start with, whether things like slugs and snails do actually feel pain. The way that the medicines and the drugs work that you put into slug pellets is they basically just cause them to expire through various toxic ways which are not going to affect humans and other animals and mammals.
Why is it recommended to put salt on cuts? | Science Questions
2007年11月4日 · A lot of bacteria, especially the ones in the mouth like Streptococci and some of the other mouth-dwelling organisms, are quite salt-sensitive.For them, a big dose of salt is a bit like putting salt on a slug. It pulls the water out of the bacteria and dehydrates them, which can damage or disable them.
Sea slugs and anti-sickness drugs | Podcasts | Naked Scientists
2020年12月17日 · Vesa Havurinne from the University of Turku, has recently found that the sea slugs induce protective changes in the chloroplasts they steal and that this allows the chloroplasts to keep photosynthesising outside of the algae. Eva Higginbotham heard how…. Vesa - The term sea slug - it refers to a large group of animals.
Sea slugs photosynthesise - The Naked Scientists
2020年12月15日 · Vesa Havurinne from the University of Turku, has recently found that the sea slugs induce protective changes in the chloroplasts they steal and that this allows the chloroplasts to keep photosynthesising outside of the algae. Eva Higginbotham heard how…. Vesa - The term sea slug - it refers to a large group of animals.
Why isn't rain salty? | Science Questions - The Naked Scientists
2012年9月23日 · The water comes out of the cloud and because just fresh water went up into the air, there's only fresh water to come back out of the cloud, and as a consequence, you get fresh rain. And that's why rivers and streams contain fresh water, but the sea is salty because as the fresh water filters down through the land, it takes a small concentration ...
What causes the water in the oceans to be salty?
2009年2月8日 · Causes of salinity in oceans. volcanic activities in the ocean brings on the sea water floor of minerals and gares from thf interior of earth's crust e.g during the formation of oceanic ridges and trenches. Chris - This is quite simple and it comes down to the fact that we have a hydrological cycle. The sun puts energy into the Earth.
Why does beer seem to go flat after eating salty food?
2008年11月16日 · Answer. Chris - It's all down to something called nucleation and that is that the salt in the drink, the little crystals, if you've got some of those stuck on your lips or still in your mouth the salt forms a rough surface for the beer bubbles (the carbon dioxide that makes beer fizzy) to form on. It's much easier to form where there's a little ...
How many cigarettes does it take to get hooked? | Podcasts
2024年8月12日 · PlayDownload. Share. This week, Dr Chris and Relebongile find out how dietary salt affects the body, how loneliness and loss of a loved one can cause ill-health, what a blind person "sees" in their mind's eye, how broken fingers heal, how many cigarettes does it take to get hooked, and why does alcohol withdrawal cause shaking and tremors...
Can we make plants grow in salty soil? | Interviews - The Naked …
2016年5月23日 · Mark - Or a bit of both. So what we need to be able to do is make plants more salt tolerant so they can be irrigated with salty water. So what we need to be able to do is partially desalinise the seawater, increase the tolerance of some of our crops, then we might be able to develop a whole new agricultural system based, ultimately, on seawater.