Recent questions tagged biology

Description : What does the human body have two of?

Last Answer : The human body has many different things that come in pairs, including: Lungs: The human body has two lungs, which are located on either side of the chest and are responsible for bringing in ... is a complex system that contains many different structures and organs, many of which come in pairs.

Description : Can one's eyes get exhausted from rapidly going from light to dark?

Last Answer : I think not, at least, not as you're saying. Having your eyes adjusted to dark, and then suddenly having bright light can be a strain, but not going from bright light to darkness (other than ... strain. Maybe if you changed light conditions back and forth many many times day after day, or something.

Description : How long after death does the last cell die in the human body?

Last Answer : Seems like some can take 70 hours to 17 days according to this But some sources said only 10 minutes, said just a few hours. So I don’t know. The one I linked said the skeletal muscle stem cells took 17 days in once case, so maybe that is the longest?

Description : Have you ever seen visions right after you close your eyes?

Last Answer : That sounds like hypnagogic images which are experienced just before falling asleep. I experienced them quite vividly as a child when they kept me awake at night. They no longer bother me and I rarely experience them nowadays.

Description : Difference between mitosis after fertilization and mitosis for growth?

Last Answer : Need Answer

Description : Do dragonflies eat wasps?

Last Answer : I found the answer What kind of insect does a dragonfly eat? Do Dragonflies Eat Wasps Yes, wasps are a common food for these insects. The dragonfly waits on a leave until the wasp is overhead ... the wasp. They lock their eyes on their prey, and can adjust their flying speed within split seconds.

Description : What is the scrap value of a typical human?

Last Answer : I’d like to think I’d be worth more stuffed, but that may be overly optimistic…

Description : How do small mammals reproduce in the ISS (International Space Station)?

Last Answer : Artificial insemination. For humans, a lot of bungee cords. Seriously, there have not been any known experiments.

Description : Is it possible for a brain to be full?

Last Answer : Probably, but old data gets over-written so the new data will still get saved.

Description : Is the 200-Year-Old Mummified Buddhist Monk is 'Not Dead' and Just Meditating?

Last Answer : I am pretty sure that mummified and not dead are contradictory.

Description : How come you don't see dead lions in nature shows?

Last Answer : Nature is pretty efficient at cleaning up carcasses. And, where lions are naturally found, there is an abundance of carrion eaters. Why would you put a dead lion into a nature show? As an apex predator, they generally die of age and infirmity, and not around the pride.

Description : Do all female mammals have periods?

Last Answer : Yes. It’s called ‘estrus’. Or “being in heat”. Summary from Wikipedia

Description : What is the disadvantages and advantages of circulatory system of mammal?

Last Answer : The circulatory system of mammals, also known as the cardiovascular system, plays a crucial role in the transport of oxygen, nutrients, hormones, and waste products throughout the body. It ... , its advantages outweigh the drawbacks and contribute to the overall functioning and survival of mammals.

Description : Does anyone have a ph d. In biology , or other ,with a specialty in hiccups?

Last Answer : Tranquilizers are used for long term hiccups (like days in a row). Cause is an irritation of a nerve that goes to the chest from the neck.

Description : What if you were raised to believe that women are supposed to be (ridiculous, or better than men) or whatever?

Last Answer : I don’t understand your question @flo.

Description : Could it be argued, that in Star Trek, there is actually only one single species?

Last Answer : While I will not delve into whether the definition of species needs to be updated (tigers and lions being distinct, but what do you call a liger?). But Star Trek does have species diversification as far back as Season One when they met the rock creature.

Description : Why do mosquito legs detach so easily?

Last Answer : Smacking them tends to destroy the parts that keep their legs attached to the body. And since they're dead, their bodies also can't send any signals to release their tarsal claws (which is what ... surfaces, including walls and ceilings). So the legs might be stuck to whatever they were standing on.

Description : How are discoveries made in microbiology?

Last Answer : answer:Slowly. I have a cousin who is in cancer research on a microbiology level. In general they start out with a hypothesis - with Condition X, knowing how organisms usually react, trying Compound Y and ... science is done - you try something, see why it failed, try something else, and so on.

Description : Am I the person I feel I am (black, white, senior citizen, young, or tall person) etc.?

Last Answer : If you live for years, 24 hours a day, 7 days a week, in the role of a black, white, senior, young or tall person then you are that person.

Description : Any medical professionals or microbiologists on here?

Last Answer : Serratia can only be diagnosed by culture.

Description : Do natural or homeopathic treatments for schizophrenia exist?

Last Answer : Better to go with conventional medicine in such cases.

Description : Does evolution disprove the claims contained in the book of Genesis?

Last Answer : yes.

Description : If you have the power to order a specific function to your body, what would it be?

Last Answer : I’d choose that face you pull when a huge sneeze builds to a crescendo only to dissipate on the cusp of explosion.

Description : Has the cause of the extinction of dinosaurs ever been determined?

Last Answer : They are not extinct, they are birds.

Description : What is the difference between a "species" and a "variety" according to evolution?

Last Answer : Well, you can have a wide variety of the same species. You have grizzly bears and polar bears. They look different but they’re the same species, that is, they can get married and have baby bears.

Description : Does the evolutionary theory tell us anything about homosexuality?

Last Answer : No. Then again, it’s not like humans are the only species where homosexuality occurs.

Description : Does a dehydration reaction take a water molecule away from the end product?

Last Answer : Seems to me the result would be C12,H14,O7 + H2O (or some other number of H2O molecules (e.g. C12,H10,O5 + 3 x H2O) and possibly other products – I have no idea what the actual reaction is like), plus or minus some energy.

Description : What do scientists know about how the growth of embryos is coordinated?

Last Answer : A good summary.

Description : Does the left testes always hang lower than the right?

Last Answer : answer:It completely depends upon which side of your brain is more dominant. For the small percentage of males that have an equally left and right brain dominance, their testicles are the same length. ... size or length or anything of a person's private bits. Cleanliness and health are what matters.

Description : Can you consciously trigger dopamine release?

Last Answer : Wow?

Description : Biological effect of chronic anxiety on the body?

Last Answer : answer:It's not something that can be done on your own; the fact that you are even asking tells me that you don't have the skills it takes to handle it yourself. And yes, you will need pharmaceutical assistance, ... . If you want a magic wand, there is none. If you want to wish it away, you can't.

Description : Can most animals distinguish left from right?

Last Answer : answer:It seems like various animals having a deep understanding of left and right would be a hard thing to prove. Especially when some people seem to have a hard time distinguishing left from right (at ... toy around the room in mostly large clockwise circles. He really gets into it. Fun to watch.

Description : Why does Single Malt Scotch make me burp so much?

Last Answer : Maybe your drink is carbonated some how.

Description : How far in human biology can I go without high school chemistry?

Last Answer : To the front door maybe, but not actually through the door.

Description : What instructs electrical pulses to move any part of an organism, and then what instructs that part to release any energy at all?

Last Answer : If I understand your question, this is a good basic description of the interaction between an electrical nerve impulse and a muscle.

Description : Do cockroaches fly?

Last Answer : answer:Cockroaches do indeed fly. They're not regular flyers, and can't fly for as long as other flying insects, but they can. Of course there are many different kinds of cockroaches, all belonging ... these? (although I'm guessing if it was that thing you would have mentioned the huge front legs)

Description : What do you think of the following webpage about bones of the human foot?

Last Answer : This page is an educational tool. I’m assuming that they purposefully left the names off, so that students can write them in. The process of looking up and writing in the names helps one learn.

Description : Aside from the US, is there even a debate regarding evolutionary theory in the rest of the world?

Last Answer : Not here, no.

Description : Can you hurt yourself with a 'brain freeze'?

Last Answer : If you are driving a car you can get in an accident. I don’t think that their would be permanent damage unless you kept it up deliberately.

Description : With the Earth being 70% ocean why wouldn't humans, the most sophisticated and complex form of life be biologically engineered for aquatic lifestyle?

Last Answer : Our brains make us technologically adapted for water life.

Description : When a black person and white person have a child, is that child ever darker skinned than the black parent?

Last Answer : It varies. I’ve seen very dark skin babies born to two light skin parents, and just about every combination in between.

Description : Considering the differences between male and female pelvises, can men Twerk?

Last Answer : I couldn’t twerk if a million dollars were on the line. I have small buns which are not prehensile.

Description : What is the purpose of water in the photosynthetic process?

Last Answer : Movement of sugar through a plant version of a circulatory system. It is the hydro-cycle.

Description : Can a tree be geneticaly modified to be as tall as to reach out to outer space?

Last Answer : answer:You would have to genetically modify the hell out of it to: 1. Make it want to reach past Earth's atmosphere for the carbon dioxide that it respirates; 2. Enable its root and sap system to transport ... . In short, no. With no reason to grow into outer space , why would it even attempt that?

Description : What do bacteria and supernova explosions have in common?

Last Answer : It would be even more interesting to do a similar analysis on each one of us and find out what cosmic event we were “related” to. Thus making us true “Children of the Stars”. A sort of legitimate astrology.

Description : What microorganism looks like a fast moving snake about 1mm long and 10 um wide?

Last Answer : I’m thinking nematodes.

Description : Have you experienced "yelow haze"?

Last Answer : answer:It happens here in Lafayette CA as the Monterey Pines all over town release their pollen. Cars, streets, lawns, all turn yellow. One year left a scum on a swimming pool and clogged the filter. And if the breeze picks up clouds roll across town.

Description : Do plants benefit from the vitamins they produce?

Last Answer : Oranges as not the plants that produce the most Vitamin C but they do well. The high vitamin C may protect the seeds from predators.

Description : Why do bugs legs curl up when they die?

Last Answer : Interesting observation. Maybe it’s a build up of lactic acid from no respiration? (Let me check that spelling). That looks better.

Description : How is cell division possible?

Last Answer : answer:It's not. Cells just lack a brain, and so they don't realize it's impossible, and they go no and do it. Actually, the machine DOES have access to parts outside itself. Because it is so small, it ... 's mind boggling. That is why, I submit, it's done only by things too little to posses a mind.