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Among aquatic, water-breathing animals, gills and other continuous-flow breathing methods dominate over lungs and other storage-based breathing methods as in land animals. Notably, axolotls have gill-like structures around their heads...
Asked on 01/23/2021
3 answerCan anyone identify this spider that I have just found in my home? ...
Asked on 01/22/2021
2 answerI've been trying to find descriptions for some of the fissures found on the inferior surface of the cerebellum, and so far the only source I've been able to find...
Asked on 01/22/2021 by Dahen
0 answerIf certain bacteria can be coated with IgA in vitro, does that mean they are likely to elicit an IgA immune response? EditI'm working on a project that involves...
Asked on 01/22/2021 by abalter
1 answerFor animals and humans, our noses are connected to the esophagus. When us humans go to the pool and do flips in the water, we often get water stuck in...
Asked on 01/22/2021 by user61193
0 answerI was reading about whales and wondered why did only narwhals, among all other species of whales, evolve to have tusks? Is there a specific environmental reason, for example something...
Asked on 01/21/2021
0 answerWhen a moribund individual commits suicide (e.g., Refardt, Bergmiller & Kummerli, 2013; http://rspb.royalsocietypublishing.org/content/royprsb/280/1759/20123035.full.pdf), is this to be considered group selection? It could be considered costly to...
Asked on 01/21/2021 by sterid
2 answerI am wondering what really powers the myosin head to undergo the power stroke to push the actin filaments towards the M-line. I have 2 thoughts:when ATP in the myosin...
Asked on 01/21/2021
0 answerIn the last few weeks, Pfizer/BionTech, Moderna and AstraZeneca have each released preliminary estimates of the efficacy of their SARS-COV-2 vaccines. But what do their respective efficacy percentages actually mean?...
Asked on 01/20/2021
4 answerI have heard a lot of people (where I am from, India) say that one must drink water sitting, not standing. Recently, I also came across a video that said...
Asked on 01/20/2021 by user1993
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