Why do some organs come in pairs and others are singular? |
- Why do some organs come in pairs and others are singular?
- Why do legumes (mainly thinking about peanuts and soybeans) seem to be more allergenic than other foods?
- Why do mRNA vaccines use mRNA in order for the body to create the covid spike protein? Why can't we just create the spike protein and make a vaccine using that (eliminating the intermediate step)?
- Is there a reason most animals' noses are biologically above their mouths?
- Is there a known correlation between having sensitive skin or problematic skin in general and having a psychological disorder such as anxiety disorder?
- Is there any measurable latency between brain signal and limbs/muscle movement?
- Do new covid-variants need new antibodies?
- Why are some species of jellyfish only deadly in the tropics?
- Natural Immunity vs Vaccine Immunity?
- Is Quantum Mechanics compatible with relativity of simultaneity?
- I've searched with my limited abilities but to no success: From soup-to-nuts, how long does it take to manufacture one dose of Regeneron?
- Why do people with defective cilia get their heart on the wrong side of the body?
- If the Oort Cloud's outer limits define the boundary of the Solar System, does that really mean that the Solar System and the Proxima Centauri star system could actually be loosely overlapping? Do all planets have similar Kuiper Belt/Oort Cloud type regions?
- The earth is 71% COVERED in water but how much more is under the surface? What is the percentage of the entire earth that is actually water?
- What is the biological basis for the "pant tugger" behavior in tree squirrels?
- Why is the south pole so much colder than the north pole?
- Why do Cranes (Family Gruidae) have red-topped heads?
- What is actually happening to your skin when you get a poison ivy rash?
| Why do some organs come in pairs and others are singular? Posted: 27 Aug 2021 04:37 PM PDT Are the mechanisms that cause bilateral symmetry the same for every pair of organs? Why doesn't this happen for the organs we only have one of? [link] [comments]  |
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| Is there a reason most animals' noses are biologically above their mouths? Posted: 28 Aug 2021 05:48 AM PDT |
| Posted: 28 Aug 2021 03:19 AM PDT I had this (stupid) thought. Skin is the biggest organ and the nervous system is connected to our brain and our body, so i thought that people who have an extra "nervous" nervous system might have "extra nervous" skin too? Like being more prone to have skin problems? I know there are a few known correlations like people who have OCD (and wash their hands often) are often having sensitive skin, due to all the washing, but i thought more in general.. This might be an really obvious question or a very stupid one, idk. Thanks in advance! :) [link] [comments]  |
| Is there any measurable latency between brain signal and limbs/muscle movement? Posted: 28 Aug 2021 04:55 AM PDT |
| Do new covid-variants need new antibodies? Posted: 28 Aug 2021 07:59 AM PDT Suppose one is fully vaccinated (lets say with J&J, which has low delta-protection), but nonetheless becomes infected with the delta variant. Would that require a new set of antibodies and hence a new set of B-cells? In my logic, that would mean a much milder illness due to the suppression of virus by initial antibodies, but nonetheless a minimum disease period of 7-10 whilst the new B-cells are developed? Bonus question(s): does everyone make the same antibodies from the same vaccine and does each individual make more than one? [link] [comments]  |
| Why are some species of jellyfish only deadly in the tropics? Posted: 28 Aug 2021 04:08 AM PDT I have read that some species of cubozoa jellies (specifically Morbakka Fenneri) live in both tropical and temperate waters, and the first aid response is different for a sting from the same jellyfish species. A sting by this jelly in temperate waters calls for only mild first aid, whereas a sting in tropical waters calls for immediate medical attention for possible irukandji syndrome. How does this work? Can the jelly only produce toxin in warm waters? Or is it to mitigate a case of possible misidentification of more deadly species? Thanks! [link] [comments]  |
| Natural Immunity vs Vaccine Immunity? Posted: 28 Aug 2021 03:07 AM PDT I am interested to hear from people who study viruses what the difference is between a natural immune response to a virus and the response of someone who has been vaccinated. I am not trying to get into anything political or any of that, just don't know much about it and would like to hear from those who know: is natural immunity generally better or worse than vaccination? Or is it the same? Or does it depend on the disease? [link] [comments]  |
| Is Quantum Mechanics compatible with relativity of simultaneity? Posted: 28 Aug 2021 01:14 AM PDT I don't know much about QM, but I've heard it has a lot of "truly random" phenomena. If so what are these and are they compatible with the b - theory of time that relativity of simultaneity suggests? Im wondering if someone from a certain reference frame "A" was moving such that he could witness the future of a random quantum event in reference frame "B" could travel to reference frame "B" and predict the outcome of the random quantum event. Im really interested in this topic, any help or explanations are greatly appreciated! [link] [comments]  |
| Posted: 28 Aug 2021 04:54 AM PDT Watching the news, I became curious as to whether or not this 4th wave may burn through existing supplies. TIA [link] [comments]  |
| Why do people with defective cilia get their heart on the wrong side of the body? Posted: 28 Aug 2021 02:23 AM PDT This is kind of a follow up question to the one posted about pairs of organs. I get why people with Kartagener syndrome get lung infections - defective hair cells of the mucociliary escalator - and infertility - sperm cant swim with no propellers! But why the dextrocardia? [link] [comments]  |
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| What is the biological basis for the "pant tugger" behavior in tree squirrels? Posted: 27 Aug 2021 11:58 PM PDT As a general rule, squirrels are - like many rodents (and other small mammals) - afraid of humans. While in some urban and suburban areas where contact with humans is frequent (e.g., parks, college campuses) squirrels may not flee when a human approaches, in the wild, their natural instinct when we or another large animal or object approaches them is to run away. But from time to time you hear stories of wild squirrels that will follow humans around incessantly, usually when the "following" squirrel is either a juvenile or a mother caring for a juvenile. This story from 2019 was widely reported on, and here's another from last year. A few isolated incidents could be written off as just erratic behavior, but looking into it more, this is evidently a fairly common phenomenon, common enough that wildlife centers often discuss it with specificity (see this example from Toronto, Canada), and it is a recurring topic on web forums and social media (for example, from within the past year alone, here's a post from May, and here's a Reddit comment discussing it from October). It thus seems to be a behavior that tree squirrels exhibit (under certain circumstances) as a species rather than aberrational behavior in a few individuals. The most common scenario by far seems to be when a young squirrel's mother is killed or abandons it. The juvenile squirrel will gravitate to a human and follow them around at great peril, exactly the opposite of the normal "flight" response you would expect. The usual interpretation is that the "pant tugger" / "pant hugger" squirrel is essentially desperate and looking to the human for help, but this could be us inferring too much about an animal's "motives" (for lack of a better term). I am nevertheless very curious about what the basis for this behavior could be! What would be the evolutionary benefit of it? Is it unique to squirrels or do other rodents (or other animals generally) exhibit it? Is the drive to just seek out the nearest warm-blooded thing or is it a unique behavior evolved alongside humans? (I have never heard of this behavior exhibited towards a non-human species, but of course we have selection bias there given that only humans could report on it in the first place!) [link] [comments]  |
| Why is the south pole so much colder than the north pole? Posted: 27 Aug 2021 03:02 PM PDT The coldest temperature recorded at the south pole is −82.8°C while the warmest temperature recorded there is −12.3°C Meanwhile in the geographic north pole, the coldest temperature recorded is −50°C and the warmest is 13°C (this data is taken from wikipedia, which cites its sources as Pogoda.ru.net for the south pole and weatherbase for the north pole) https://en.wikipedia.org/wiki/South_Pole#Climate_and_day_and_night https://en.wikipedia.org/wiki/North_Pole#Climate,_sea_ice_at_North_Pole So why is it that the south pole is so much colder than the north pole? [link] [comments]  |
| Why do Cranes (Family Gruidae) have red-topped heads? Posted: 27 Aug 2021 09:25 PM PDT I am a recent Zoology graduate, and I can rationalise many things with animals, but trying to find an answer to this seems impossible. So many crane species have a head with a red-top, is there an ecological significance to this I am missing? I would assume it's something related to mate-signaling but I am massively bothered by the fact that, over my life as an animal enthusiast, this is the only question I can't find an academic answer or even credible allusion to why on earth these birds have little red caps on them. [link] [comments]  |
| What is actually happening to your skin when you get a poison ivy rash? Posted: 27 Aug 2021 12:49 PM PDT Specifically I'm wondering why it starts to boil and ooze and what is it even secreting anyway? I couldn't find anything good online. [link] [comments]  |
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