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2d
comment Do the enzymes and compounds in saliva help with stain removal?
Why spit when you could just use soap and water?
2d
comment People who are very “aware” or very sensitive, is the brain more advanced or less advanced?
I'm voting to close this question as off-topic because it is much better suited to Cognitive Sciences.
Jul
25
comment Why do Shiitake mushrooms grow on logs?
@TomD Not really. There is a perfectly logical biochemical explanation for why the avidin-biotin bond is so strong. As for the presence of avidin in eggs and Streptomyces, the exact reason is not known, but there are reasonable hypotheses. As far as the OP's question, though, there is no reasonable hypothesis of which I'm aware that explains why shiitakes grow on decaying trees, except the generic evolutionary explanation that it was an ecological niche that could be filled, so it did.
Jul
25
comment How long does conception take?
There is research showing that spermatozoa contain a number of RNA species, including mRNA, so theoretically translation could begin almost immediately. The Wikipedia articles on human fertilization and fertilization in general contain lots of other information, if you haven't read them already. Unfortunately, there's nothing in them about timing that I could find. I'm sure it's out there, though.
Jul
25
comment There aren't any animals like hornets that hunt large prey (like a rabbit, or even up to a deer), right? Why not?
Your giant spider colony example completely misses the point. Yes, they exist in large colonies, and larger webs can catch somewhat larger prey "several times their body size" (from your link), but they do not hunt much larger species like the OP is looking for. I don't think s/he doubts cooperative hunting exists, they're just looking for examples of individual predators being orders of magnitude smaller than their intended prey.
Jul
25
comment There aren't any animals like hornets that hunt large prey (like a rabbit, or even up to a deer), right? Why not?
While piranhas can take down very large prey, such as cattle, that is not their ordinary behavior by far, and actually quite unusual. Attacks on large animals and humans are typically non-fatal, with some nips and bites taken, but the victim usually can escape. Fatal attacks occur with children, impaired or disabled adults (such as drunkenness), and at the peak of the dry season when water levels are very low and food is scarce. Studies have actually shown that they are rather timid fish, using their teeth primarily for defense.
Jul
25
comment Why are sight and sound prerequisites for intelligence?
I have not judged you by your ability to spell English words, I have merely corrected them.
Jul
25
comment How long does conception take?
Can you define exactly which timespan you're interested in? Ejaculation to DNA entering nucleus? Sperm contacting egg to DNA nuclear entry? Some point until the first cell division? Please edit your question to clarify it, otherwise it is rather unclear.
Jul
24
comment What form of reproduction did the first land animals use?
I think the term you are looking for is sexual dimorphism. Or just sexual reproduction.
Jul
24
comment Why do Shiitake mushrooms grow on logs?
Because that's where it grows. It has adapted to growing there. Why do mangroves grow in salt water?
Jul
24
comment Importance of Biodegradation pathway over other pathways
Think about it - without degradation pathways, "garbage" would build up and eventually overwhelm the cell. See lysosomal storage disorders for real-life examples.
Jul
24
comment Neuroscience - emission of smells
Please read about odor (what smells are) and olfaction (how the body senses odors). Odors are volatile organic compounds sensed by specific receptors in the olfactory system. The human body has absolutely no way of detecting radio waves, and even if it did, radio waves cannot transmit chemicals, as they are composed of photons. The only way this could work is if a device was created that produced odors when it received certain signals, such as Smell-O-Vision.
Jul
23
comment Could a coalition of cheetahs take down a lion
@Caters I answered your question in my first comment: Probably. It would depend on a lot of factors, such as the number of cheetahs, their organizational capacity and motivation, the health and age of the lion, etc., but it probably could happen. The fact remains, however, that this is an open-ended, completely hypothetical question. As WYSIWYG mentioned, a coalition of just about any animal could kill a lion if they were properly organized.
Jul
22
comment Why does T-cell Cancer Therapy require a large tumor mutanome?
The article is also available on PubMedCentral.
Jul
22
comment Could a coalition of cheetahs take down a lion
From What types of questions should I avoid asking? in the help center: "avoid asking subjective questions where (…) you are asking an open-ended, hypothetical question: “What if ______ happened?”" This is exactly that type of question.
Jul
22
comment glibc double free or corruption error when running Oases transcriptome assembler.
This question belongs on Stack Overflow with a bit of improvement. First, do not post text as an image. It can't be searched or archived, and those with vision disabilities are not able to decipher it with a screenreader. Paste it into your question and format it properly using the {} code formatting button. Second, please describe the exact steps you took to compile the program(s) you mention, as well as the full details of which platform you're on (distribution, version, bitness, etc.). Finally, please include example input, expected output, and the actual output you are getting.
Jul
21
comment Is eating food rich in glucose good for high mind intensive activities while being not bad for health?
Personal medical questions and health advice are off-topic on Biology. We cannot safely answer questions for your specific situation and you should always consult a doctor for medical advice.
Jul
21
comment Could a coalition of cheetahs take down a lion
Probably.​​​​​​​​​​​​​​​
Jul
21
comment Asymmetry between kinases and phosphatase numbers in biological systems
So my question is, why are you asking this? And what research have you done on your own to find the answer?
Jul
21
comment Asymmetry between kinases and phosphatase numbers in biological systems
In most steady-state systems, phosphorylation and dephosphorylation is usually pretty balanced. However, many many many different types of inputs can (temporarily) disrupt that balance - receptor ligation, movement, environmental sensing, mitosis, the action of drugs, etc. etc. etc. This refers to the number of phosphate molecules that are attached to protein residues (typically serine, threonine, and tyrosine, but other residues can be modified as well) at any particular instant. The actual number of kinase and phosphatase enzymes is irrelevant.