Top new questions this week:
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The majority of western nations have lifted most if not all COVID restrictions, however we are not seeing a massive rise in serious cases of COVID-19. Why is it different in China? Do they have a …
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I was reading the paper “A survey of methods and tools to detect recent and strong positive selection” (2017) and came across this: Upon fixation of the beneficial mutation, elevated levels …
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The term “undruggable” is often use in drug discovery. As far as I understand it, it means “for which no inhibitor has been found so far”. It’s a fuzzy, non-satisfying, definition. …
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They look like seeds and have no legs. Lots of rain and colder weather recently. Nothing on our mattresses and mainly in kitchen and living room. Came out of nowhere.
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I know that the primary way that CO2 leaves a healthy human’s body from the blood is by diffusing into the lungs during gas exchange and then being exhaled. Is there any other way in which CO2 from …
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Skull found near Merrimack River, West Newbury, MA frequented by Eagles, Hawks. Some kind of fish maybe? It’s about the size of a hand
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I want to express some doubts regarding autotroph bacteria. The question I want to ask is relative to wastewater treatment plants, more precisely at the nitrification/denitrification step. I’ve …
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Greatest hits from previous weeks:
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Why is the Krebs cycle considered a part of aerobic metabolism if molecular oxygen is not involved in any of the reactions in the cycle? I originally thought that Krebs cycle was aerobic metabolism …
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Semen is a thick, nutritious liquid, rich in vitamins (such as C, B12), amino acids, lipids, monosaccharides (fructose), et cetera. Can semen’s ability to fulfill the needs of human organism provide …
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An answer at Pets suggested using dawn dish soap to kill fleas. I did a little looking around, and found several references supporting the idea. Most of what I found was in ‘selfhelp’ and ‘save a …
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What are the I-IV blood type descriptions shown below (commonly used in Eastern Europe), and how do you translate them into the ABO-system?
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I understand that turtles are reptiles because like all reptiles, they have scales on their body. But turtles (specifically sea turtles) live on both land and water, very much like amphibians. Also, …
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I wanted to understand what is the difference between systolic and diastolic readings of blood pressure. I understand 120-80 to about 100-60 is considered normal but does the difference in the two …
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In practice, when you have vasoconstriction of the glomerular capillaries and subsequently an increase in blood pressure, glomerular filtration rate increases. However, this seems counterintuitive to …
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Can you answer these questions?
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Melanin in fur, hair and bare skin (eumelanin, pheomelanin) does not create green colors, which is why green mammals are so rare…. Green sloths (Americas) are covered in some sort of algae, which …
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The CRISPR/Cas defense mechanism uses spacer sequences between palindromic repeats to search for the sequence to cut by an endonuclease. But how are these spacers created? Let’s take Bacteriophages, …
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