Biology

Brittany Tardif From Cornwall, asks,

We weren't allowed to put in a permanent dock because it affected the ecosystem. Can you please explain the effects on the ecosystem of the St....


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Biology

Donald From St. Johns, Newfoundland, asks,

Comparing the storage capacity of the human brain to computers, if data and memories in a human brain could be transferred to a hard drive, how big...


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Biology

Chanell From South Africa, asks,

Why do some people bruise more easily than others? What is it that makes some people more sensitive to physical contact than...


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Biology

Suzanne Hamricks asks,

I gave a child up for adoption in 1966. I have found someone who might be my child. She has type "A" positive blood and I have type "O" negative...


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Biology

Barbara Lynn Terry From Milwaukee, asks,

I understand that there is a hormone in the brain that regulates and controls sexuality. Is this true? If it is, then what is the name of this...


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Biology

Gary A. Ballan asks,

I know that there has been success with crossbreeding horses with zebras, dogs with wolves and cattle with bison. Is it also possible to cross breed...


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Biology

Chris Shipman asks,

Do scientists have a method of breaking CO2 down to oxygen and carbon? If so, would this be more cost effective than pumping CO2 into the...


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Biology

Eli Sklar asks,

What education do you need to become an embryologist? ...


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Biology

Ben Marengo From Manchester, England!, asks,

Why does a sperm in the female reproductive system not get attacked? It has foreign antigens, which is what triggers an immune response. Also immune...


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Biology

Sheila Hart asks,

How can you detect a chemical in the human body even after it has passed through? For example, alcohol passes through the body in 24-48 hours. But it...


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Biology

Zach asks,

How were the organelles in the cell...


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Biology

Stuart Wills From Brisbane, asks,

I am curious as to how much electricity over given periods of time (instantly to say a 10 seconds) would it take to kill your average garden type...


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Biology

Lisa Fondelius From Borås, Sweden, asks,

If pepsin digests proteins in the stomach, how do orally taken vaccines...


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Biology

J. Etter From Eureka, asks,

Have any cures for any specific viruses been found? By cure I mean the ability to rid the body of all the viral...


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Biology

Gerhard asks,

What kind of permanent changes in a developing child's brain or behaviour can be caused by the mother's chemistry (hormones, neurotransmitters etc.)....


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Biology

Leo From Montville, NJ, asks,

Where can I find the data to support that polyvinylpyrrolidone is safe for medical applications? Please advise. Thank...


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Biology

Sandi Schacher asks,

How do cells know when to stop growing (dividing)? How does cancer change the cell so that it no longer knows when to quit? ...


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Biology

Carly From Colorado Springs, asks,

When a group of cancerous cells is compared to a group of normal cells, cancerous cells usually have a much larger percentage of immature cells and...


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Biology

Jason Kang From Thornhill, asks,

If a person was to experience continous pain, of moderate intensity, for a week, is there any evidence of physiological changes in the body solely...


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Biology

Mike Delie From Menomonie, asks,

I'm doing a senior project on recycling, and I'm curious if it uses more energy to mine and convert aluminum into metal than it does to recycle it. ...


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Biology

Dale Patt From Kelowna, asks,

What exactly is "Bovine Spongiform Encephalopathy" (BSE), or mad cow, what are it's effects, and how in the heck did us canadians get it over here if...


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Biology

Don Roscoe From Vancouver, asks,

Is there a machine that will measure the amount of oxygen that my lungs use in a breath? Or the difference in oxygen present on inhaling and...


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Biology

Kim From the Internet, asks,

When metal scrapes metal such as two spoons, it makes the edges of my teeth feel numb. Why is...


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Biology

kristi From hurricane w.v, asks,

If a person or infant is going to get freckles, at what point or age do they...


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Biology

Jennifer Easterly From Sydney, asks,

Does the diameter of a tree have anything to do with the percentage of lichen coverage on the...


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Biology

Nancy rosamond From Owen Sound, Ontario, asks,

When I grew up most oranges grapes and other fruit had seeds. This was the normal fruit and vegetable state. Now, GMO foods do not produce seeds Like...


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Biology

Amanda From Thunder Bay, Ontario, asks,

What is colour? How does the brain perceive...


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Biology

Denise From San Jose, asks,

Is it possible to do a blood test (or some other type of tissue testing) to determine someone's exact...


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Biology

Hannah From North Bay, Ontario, asks,

My Dad told me about bioluminescence you know, the stuff that makes living organisms glow? Anyway, what exactly makes them light up like that? Is it...


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Biology

jessi From San Francisco, asks,

I have more than one question: Does Coffee work better for females or males? Does Coffee work better for younger people or older people? Does coffee...


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Biology

Natasha Jackson From leaf river, asks,

How many skin cells would be in a square...


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Biology

Gillian From Haliburton, asks,

What effect do pain killers have on the human brain? How exactly do they work? What about drugs like Ritalin or Prozac?...


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Biology

Kim Yonda From Winnipeg, Mb, asks,

I'm doing a project on mercury in water. I was wondering if and how you get mercury out of lakes. Is it...


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Biology

Rosanne Li From the Internet, asks,

I would like to know how the brain functions generally while sleeping, and what part electricity plays in the process. I would also like to know the...


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Biology

Rose Durose From Maple Ridge, asks,

I'm wondering if you could name some pros and cons of the environmental profession and what kind of education does a person need to go into...


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Biology

Ryan From Toronto, asks,

I am in grade 7 and attempting to do a Science Fair Project. I would like to know how I could test whether a commercial toothpaste or a home-made...


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Biology

Kevin Swope From San Diego/California, asks,

Why does Aspartame taste so sweet? What is the chemistry involved in something that tastes...


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Biology

Peter Griffin From Beaufort, asks,

Do all antibacterial soaps kill bacteria? How do you test if they...


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Biology

Lisa Yang asks,

How do split ends affect the way your hair grows? Why do people say that when you have split ends, then your hair stops growing and you need to get...


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Biology

Lacci From Withernsea, Yorkshire, England, asks,

Many people say there are 5 senses in the body but I am arguing with my mum here that there are six. Could you please tell me are there 5 or...


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Biology

H. Basran From the Internet, asks,

Can any plants regenerate after they are totally dried - I don't mean somatic embryogenesis: can the actual dried leaves regenerate, after they are...


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Biology

Rick Anderson asks,

Is the air we exhale pure carbon dioxide? If not, then what is it? ...


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Biology

John Mitrosky From Scarborough, asks,

My son is doing a herptiles of ontario project and this a missing link question: Do you think ichtyostega and acanthostega came from a fish, or a...


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Biology

Jennifer From Brooklyn, asks,

Why does uracil replace thymine in...


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Biology

Nameless From Internet, asks,

When a baby is formed it starts out as one cell then splits and reproduces and forms perhaps trillions of cells in nine months to make a living baby...


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Biology

anton From Melbourne (Australia), asks,

Is blood more complex than just the four groups? How? Also, what structures allow humans to have different blood types, and what are their...


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Biology

Alexandra asks,

What's a gathering of frogs called? What's a gathering of toads...


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Biology

harish From scarborough, asks,

What is the difference between fats and ...


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Biology

Boo From Mississauga, asks,

Why do some people use salt to kill weeds? What does salt do that makes the weeds...


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Biology

Sarah From the Internet, asks,

Why doesn't pepsin break down gelatin on developed photographic film or does it just take a very long time? I did an investigation to see how pH...


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Biology

Zambi Donburi From Brisbane, Queensland, Australia, asks,

How did we (as a race) evolve eyebrows and eyelashes. The way I understand it is that to evolve something, there has to be a life changing need,...


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Biology

David Cheverie asks,

How do you know what size lobsters should be released instead of taken, in order to ensure the survival of the...


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Biology

Rafael Sumalinog From Edmonton, asks,

What is immunofluorescence analysis, what basic materials are used, and how long does it take to perform? Is this similar with cytometric assay and...


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Biology

Krisy Marsh asks,

How would one maintain a bacterial culture without having to transfer cultures on a regular...


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Biology

Unknown asks,

Are there living beings which do not...


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Biology

Loubelle I. Depita From Koronadal City, South Cotabato,Philippines, asks,

Why does nutrasweet or aspartame loses its effectiveness in cooking or in processes requiring elevated...


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Biology

Samantha From London, asks,

At which age do the nasal bones and the mandible complete...


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Biology

Xinyi Chong From Beijing, asks,

Do shells have nutrients in them? If so, what actually uses those...


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Biology

Ondraya Espenshade From York, asks,

Is either Klebsiella pneumoniae or Serratia marcescens documented to be able to extract naked DNA from solution and incorporate it into it's own...


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Biology

Corinne Keffer From Halifax, NS, asks,

I have a liquid crystal display screen computer monitor. I am looking for unbiased information on the chemicals in my flat screen. I would like to...


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Biology

Peter Gensch From Auckland, New Zealand, asks,

Is there an effective and affordable way to kill weeds on an organic basis? (i.e....


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Biology

Cynthia From Chilliwack, Canada, asks,

IF my blood type is A negative what are my parents' blood types? What does it mean to have negative...


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Biology

stephanie From windsor, asks,

Why can't spruce trees compete with maple trees in more southern forests? What advantages do the maple trees...


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Biology

Ram Ajore From Delhi, INDIA, asks,

What are the ways in molecular biology to show confirmation of hybridization on a solid surface for DNA other than radiolabelling and electron...


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Biology

Giovanni Cuevas From Bronx, asks,

How much does a person's head or skull grow every year? If I'm 16, how much would it grow until it reaches its adult age or...


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Biology

Carla Becker From Dallas, asks,

If we are making a perfume and we pour alcohol on an orange peel; why would the smell increase the longer it sits in the bottle? I was looking for...


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Biology

Brian From Denver, CO, asks,

When eating spicy foods, the tongue and lips can get a burning sensation. Why don't the insides of the cheeks do the...


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Biology

Terra From Ontario, asks,

How does sugar conserve food?...


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Biology

Mark Seymour asks,

Why are there no penguins in the Arctic, or anywhere in the Northern Hemisphere? ...


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Biology

Trevin H. From Rocklin, asks,

I would like to know the chemical compostion of the venom in a yellow jacket wasp sting, the dosage of venom produced by a yellow jacket, and how...


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Biology

Marlene Caissie asks,

I heard there was a woman named Rosy involved in the discovery of the DNA double helix. Who was she and what part did she play in the discovery? Why...


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Biology

David Critch asks,

My grade 10 biology teacher tells us that blood comes in different shades of red (dimmer and darker). I always thought that blood was blue until it...


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Biology

Benjamin Raja From Singapore, asks,

At what speed does the world's slowest living thing travel? And what is the world's slowest living thing? ...


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Biology

Lisa From London, asks,

When does each organ system of the human body reach full...


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Biology

A.E. asks,

Why do we have five fingers? My idea is that one of nature's themes is "having enough." It's like a log function. It increases rapidly to a point...


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Biology

Loubelle I. Depita From Koronadal City, South Cotabato, Philippines, asks,

Why are egg & milk used as antidotes for heavy metal poisoning and what other household remedies may be used for the same...


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Biology

Brandi asks,

Can air in the pleural cavity cause the lungs to expand more fully than they normally...


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Biology

Karan Rana From Atlanta, asks,

I am doing some research on microarrays. I wish to know if mRNA's also have open reading frames as in DNA's? If yes, how can they be...


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Biology

Erin Harris asks,

How would Giant Pandas being killed off affect my...


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Biology

Grade One, Chesterville Public School From Chesterville, Ontario, asks,

What do you feed baby praying mantises? We found a mother praying mantis who laid an egg sack on a screen in our terrarium. Two days ago the mantises...


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Biology

Kelly asks,

What is the structure of chicken...


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Biology

Harriet Quaide From Birmingham, asks,

Is it possible to test for, and diagnose, mitochondrial disorders, after death? How? Can this be done with a corpse over a year old? Can it be done...


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Biology

sabiha From lahore, pakistan, asks,

There is a controversy among my collegues that during agarose gel electrophoresis the band that fluoresces is actually of mitochondrial DNA instead...


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Biology

Mridu From Toronto, asks,

Specific tissues are meant to perform specific functions. Is it possible to transfer different tissues into one organ to make it an organ that can...


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Biology

Vanessa asks,

How does nicotine affect the growth rate of a plant? If you were to put a cigarette in the soil of a plant, would it grow slower or die? ...


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Biology

Akin From Winnipeg, asks,

Why does HIV form resistance to ARV so quickly? HIV reproduces itself millions and millions of times a day, and only about 1/10000 is an error...


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Biology

k.h. From Alberta, asks,

My husband has dark brown hair, and I have white blonde hair. If Dark hair is supposed to be dominant, then why are our 3 kids all so fair like...


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Biology

YIanni Mitropoulos From Melbourne, asks,

If a sound is played to a person over a period of time, is there a way to work out (or to estimate) the percieved loudness of it at any point in...


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Biology

Helen From Toronto, asks,

How can you extract the bacteriocins (colicins) from E. Coli? I would like to test the effectiveness of bacteriocins in destroying its own species....


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Biology

Alexa Clay asks,

How do scientists modify a virus so that it can be beneficial to a host cell? For example, during a lysogenic infection when a virus injects its DNA...


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Biology

Nedim From Atlanta, asks,

For a long time I have noticed that during the day or any kind of brighter light my eyes are bright green, but while I am in darker areas my eyes...


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Biology

Kevin Pagn From Vancouver, asks,

Is a nerve impulse considered an electric current since it induces a magnetic...


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Biology

Callie Davies From Phoenix, Az, asks,

We just finished studying about DNA, Adenine, thymine, guanine, ect. and one question that I had that my teacher didn't know was, "Why does thymine...


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Biology

Amie From West Harrison, asks,

How do you get rid of duck weed in a...


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Biology

Ethan Diener asks,

If body temperature is 98.6 degrees, why does 98.6 degree water feel hot when you place it on your skin? ...


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Biology

Anita.S asks,

What is Birute Galdikas' latest book on the Orangutan Behaviour and her work? ...


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Biology

C. Davies From Knoxville, asks,

If a person has a bacterial infection and sneezes on a piece of paper, how long will the bacteria live? And the lifespans and names other types of...


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Biology

Marie From Rochester, asks,

My whole family plays hockey. We have frequently discussed how long of a shift should be and with how long of recovery time in between. If a 30...


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Biology

Sarah Spratt asks,

What is the most critical environmental problem in Canada today? ...


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Biology

Totoro asks,

How do antiperspirant products work? Could you use one on your chest to prevent...


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