Mr Rayon

And what about in cell membranes? Is it the same case there? (Just need to quickly finish my practical report...lol).

Tell me about it.

I have gone to the beach on a biology excursion and examined the variation in the number of species living from one particular region of the beach to two others. I have also been told to make a vertical distribution diagram according the results received during the day of the excursion. However, unfortunately I was away during the day in which my class was told how to make a vertical distribution diagram. Could someone please explain to me on how to make one? Or send me to websites that can teach me? Any help will be appreciated.

Telomeres prevent chromosomes sticking together and they enable complete replication of chromosomes to occur. Please explain why this is in detail.

How much of an affect can stress have on the brain? To what extent can it cause a decrease in intelligence? When we are at a time where we are feeling stressed or angry our adrenal glands release cortisol. Having cortisol released for long periods of time has been known to damage the hippocampus of the brain making it more difficult to form the type of memories associated with it, and therefore reduce IQ levels. So, my question is how much of an affect can be seen when cortisol is released for a specific period (you can choose how specific, generally the more specific the better)? Does the release of cortisol cause other damage to brain structures? Can this be fixed?

Hmmm....okay, let's say that you have a lot of family members who have had diseases which could all have been genetically passed on. Then let's say that you inherited these genetic problems. Before 'sprung,' could the diseases be overcome through healthy lifestyle choices? Or is it an inevitable problem? --Please my ignorance--

What are they? Is it really that important in Chemistry? How many are there? Did you memorise them? How long did it take?

I remember watching an episode of "The Simpsons" that briefly discussed the issue of the decline in happiness as intelligence rises. If my memory serves me well, Homer had a crayon lodged in his brain and when this was taken out, his intelligence and knowledge of things increased. However, after he increased his IQ, he fails to socialize with others and as a result becomes almost depressed. His daughter, Lisa, shows him a graph she had made showing the correlation between the decline of happiness as intelligence rises. This causes Homer to have someone put the crayon back in his brain. As a result his IQ and knowledge of things decreased back to normal (whatever that means). Many of our most well-known geniuses were not very happy and over-looking many other relavant factors I can say with confidence that it was probably this that made them what they are.

That is a good idea thedarkshade, though right now it is the school holidays so I may not be able to do that right away. I'm sure our microscopes are powerful enough, though it would probably miss the ribosomes that usually hang around the rough endoplasmic reticulum. I don't think they are powerful enough to see the ribosome. BTW, out of curiosity, does anyone know what magnification you need to see ribosomes? If it helps, according to my biology textbook it says that they are usually about 30 nm thick.

It is probably best if one were to actually learn a foreign language by living in that specific country where the language is most frequently spoken. That way, it requires less effort to actually learn the language. I lived in Indonesia for two years and kind of accidently learnt one its many local languages as a result, though it took me a few years to become fluent of its official language. But, that was when I was little and I hear that children learn languages pretty fast in comparison to most adults. By contrast, Indonesian (Bahasa Indonesia) is pretty similar to English. Japanese on the other hand seems very different; there are too many kanji symbols, thousands. This was the language I studied in Primary School, didn't really get into it at the time. Though now I'd love to learn fluent Arabic, Japanese, Spanish, and German. Though, it is probably too late now; not much time for it.

Physics, well that sounds scary to me at this point. Hopefully, some day that thought will change. What can physics lead to as a future career? BTW, surprisingly the math involved does not put it off for me right now. For me math is rather like a puzzle, quite enjoyable in small doses. But, the math that we do in my current year level is basic, so I may not know what I'll be in for. But, I am definitely putting it into consideration. It sounds very interesting and exciting but still...scary.

I am currently a student and thinking of a possible future career in medicine. Perhaps, if I'm good enough I'll become a doctor of some sort. Anyway, I love to study and learn about science, it is as if you can never learn too much of it. And, I want to pick the right VCE subjects for Year 11 next year. Though, I'm afraid I've never touched physics in my life. Will I need it if I plan to become a future doctor? How hard is it? If I do choose to do it what will I actually be doing? It is a bit of a mystery subject for me. Does anyone know of any good sites to learn about it? Anyway, I will definitely do biology, chemistry, math subjects and I think it is compulsory for me to do English where I am in. Anyway, any opinions, suggestions, comments etc will be appreciated.

I thought the right cerebral hemisphere controlled the left part of the body. Anyway if the body were to be wired-up differently it would theoretically cause a lot of problems. I don't know of any benefits but it does seem interesting ponder on that idea.

For r_bo_99 and anyone interested in improving memory, I found a good site where it briefly tells a reader about it (it also answered my question): http://www.helpguide.org/life/improving_memory.htm

Yes...I think CaptainPanic is onto something here.

Bluntly, no. Both types seem wrong.

Soz, I can't name 3 differences between RNA and DNA if it is related to school work. Try these sites though: http://en.wikipedia.org/wiki/RNA http://www.newton.dep.anl.gov/askasci/bio99/bio99410.htm http://www.diffen.com/difference/Dna_vs_Rna gl, hope they help.

While on another site reading an article on photographic memory. A simple question came to me. It was "can one improve one's memory without using some sort of trick to it?". For example, without using some sort of mnemonic. So, if one were to constantly memorise things...let's say definitions from a dictionary, will one's ability to remember in that specific way improve as a result of repetition? Or is our ability to memorise things based purely on genetics? Or is it a bit of both? BTW, I have heard that many people do not believe in the so-called photographic memory. Any theories, or ideas behind it? Soz, if the first question seems naive, anyway I'd love to hear any thoughts on these. Thanks.

(m) 15- I am totally against abortions even under extreme circumstances. Abortions are wrong and should not be performed. It is unethical. If a problem arises during pregnancy, there is always treatment, it is no excuse to become a murderer.

After a person dies, the muscles stop working (after rigor mortis). I have heard that when the body is put into a constant state where it cannot be moved (for example in a grave), gravity pushes the blood downwards and results in it being located elsewhere in the body. Is this true? If so, how long will it take for the blood to go down? Which route does the blood take to get down? Thanks

I am doing a biology project on the endoplasmic reticulum; it is on power point and I need some awesome pictures of the organelle. And, when I mean awesome I mean 21st century stuff or if that's too difficult just any clear pictures will do. Does anyone know where I can get some awesome pictures of them? All help is appreciated!!!

I understand your situation very well; I want to one day become a doctor as well. I've started studying the basics to it, memorising some medical terms and the kind of stuff you read off textbooks. From doing this I have a slightly more than average knowledge of the subject biology or anything that revolves the human body towards my peers. However, my other subjects remain average and do not stand out as much. As long as you have motivation, ambitions, goals you will probably get to the place you want to be. Make this a time where you put your act together and aim for something you want. Don't waste any more time. You're still young (like me), and at this stage you can choose to be anything you want as long as you are prepared to spend hours studying. And this is coming from a brutally honest person. You will also need a peaceful learning environment to succeed, not an abusive household; this may be your greatest barrier! Good luck.

From your post, I'm guessing you're a night owl. Have you thought of taking advantage of the situation? Night time is a lot more quiet than Day time. Do someting constructive. Read a human body atlas, a science text book, play chess on the net, do a puzzle, or just do some math problems. You'll be surprised by how much you'll learn. I should know that's what I often do when I can't get to sleep. However if you see it more as a problem then why not try slowly sleeping just a little bit later each day until you reach the time where you're supposed to be asleep. Good luck with that by the way.