Biology

Marilyn Davidson From Windsor, Ontario, asks,

I would like to know if the aluminum in antiperspirants contributes to...


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Biology

Andrea Rose asks,

Why do brown or blue eyes turn green in young...


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Biology

Roy Donaldson From Toronto, asks,

Is it true that in total a bee's venom is acidic while a wasp's venom is basic? If so, would it make sense to treat a bee sting topically with baking...


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Biology

Magnus From Sweden, Malmoe, asks,

Which substance plays the most important role in making a blue eye blue? I have got blue eyes, but is there any way I could eat something that has a...


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Biology

Wesley Lawson From the Internet, asks,

What is the amount of force in foot pounds behind the average human's...


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Biology

Kurt Schallitz From Livermore, asks,

I know that the genes for red hair and for blonde hair are both recessive. What is the likely hair color if a blonde and a red head have a...


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Biology

Anonymous From the Internet, asks,

How much liquid is in the...


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Biology

Sonia Alvarez From Bogota, asks,

If Entamoeba Coli is present in the human intestine can other amebic life forms survive there as well? More specifically, can Endolimax Nana,...


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Biology

rob From the Internet, asks,

Is it possible for a wild koala bear to ignite as a result of the sun's radiated heat igniting the eucalyptus oils found on and within the kola's...


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Biology

Christine Scott From Saltspring Island, BC, asks,

My question is about the reproduction of the Moon Snail Polinices lewisii. Are the eggs laid within the sand/mucous collar, or are they sandwiched...


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Biology

Karen Lynn From toronto, asks,

I have blue eyes and am the mother of a son who has blue eyes as well. His father has brown eyes. My son's father is of East Indian extraction. None...


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Biology

Kelvin C From Markham, Ontario, Canada, Amérique du Nord, asks,

I was...


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Biology

Michael Comeau From the Internet, asks,

What must occur for two parents with blood type AB to have a child with blood type...


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Biology

confused From Toronto, asks,

Does a person get their blood from both parents or just one? My parents seem to think that one's blood comes only from their father. They plan on...


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Biology

Frank asks,

What does cytoplasm do in the...


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Biology

Tappar From New Delhi, asks,

How did scientists conclude that a major part of our genome is junk? Did they search for open reading frames?...


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Biology

Paul Martos From Michigan City, Indiana, asks,

I have a small laser pointer. The spot produced by the beam is not a solid red circle, but a fuzzy blotch seemingly made of a dozen tiny red spots. ...


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Biology

Justin From North Bay, asks,

How long is a frogs tongue? I had a test question that I thought was wrong. Does a frog have a long tongue? I answered yes but I don't think they...


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Biology

Carla Poot asks,

Why can't an insect grow large enough to terrorize a...


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Biology

Deion Christopher From Missouri, asks,

Can you really grow plants from the seeds found in Mammoth feces? In national parks here in Missouri, after a controlled burning, naturalists set up...


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Biology

Janice Tsui From Toronto, asks,

How long can someone sustain without sleep? What factors would change that number of hours or days? Could you please provide any good sources to...


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Biology

Arslan Zaidi From Karachi/Pakistan, asks,

What are the urgent steps an undergrad must take to start researching? I am a high school graduate who wants to become a scientist. I want to become...


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Biology

Tarek Samaha From Lengerich, Germany, asks,

I would like to know the amount of salt (either in ppm or %) in a normal human...


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Biology

Jennifer Easterly From Sydney, Nova Scotia, asks,

I hear there are 9 species of cicadas in Canada, but I haven't been able to get any more information than that. Where are they found in Canada? Do...


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Biology

Avi From Vancouver, Canada, asks,

Are double yolked eggs ever viable? Can they be fertilized? If so are they to be fertilized once or twice? Is there an evolutionary advantage to the...


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Biology

Jen From Orland Park, asks,

If you find a bone in an archeological dig how can u tell what kind of animal it...


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Biology

Ryan Dretke asks,

Why are a duck's feet coloured...


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Biology

Michael Heyd From North Vancouver, asks,

When does your skull reach its full, adult...


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Biology

Carly From Toronto, asks,

I was wondering where I can find good resources on determining the movement of an obese person (walking on the street) as opposed to a healthy...


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Biology

John Lavender-Stott From Blacksburg, asks,

Is homosexuality inborn?...


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Biology

Mateusz From New York, asks,

Why does it take nerves so long to grow back, more than for skin...


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Biology

Christina From Orland Park, asks,

What process does a jellyfish go through when it stings...


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Biology

Owen Richardson From Cobble Hill (Vancouver Island, B.C.), asks,

I understand that cancer is caused by mutations in some of the genes that regulate cell growth and division. I also understand that patterns of...


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Biology

Frank Palmay From mississauga, asks,

I understand the concept of dominant and recessive alleles but I was wondering why some alleles are dominant and some are...


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Biology

jake From Duluth/MN USA, asks,

Can you verify the scientific validity of statements I've heard animal rights groups make, including that


Biology

Julie From Portland, Oregon, asks,

How are sand dollars bleached white? Is it by the sun or the...


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Biology

Avadhuta Raya From Amsterdam, asks,

I imagine there must be a gene for lactose tolerance in mammals and humans? They have to have it, otherwise as infants they could not digest the...


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Biology

Stanley From Vancouver, asks,

Why are soccer balls coloured black and white? I heard it has to do with these two colours making the ball easier to see during daytime and nightime....


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Biology

Jonathan From Kuala Lumpur, Malaysia, asks,

Is it possible for the air that we breathe to either run out or deteriorate to such an extent that we all slowly suffocate? Can this be caused by...


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Biology

Nick (via his mother Illan) From Denver, Colorado, asks,

I put frozen spinach, fresh spinach, canned spinach, frozen peaches, fresh peaches and canned peaches in separate glass bottles. Before that, I...


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Biology

sinthuja asks,

Do the cells in the heart tissue know if there is something wrong with the heart. If so, how do the heart's tissues tell the brain there is something...


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Biology

Sam asks,

There is this question in my physics book asking me to check out the ways plants wrap themselves around a pole, some wrap themselves...


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Biology

Sarah From Fredericton, NB, asks,

What is the chemical in banana that causes...


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Biology

Steph From London, England, asks,

I've often wondered about this. It's kind of complicated, so bear with me... If a person suddenly one day decided to behave as if they didn't have,...


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Biology

Ryan From Pittsburgh, PA, asks,

I'm curious about the possibility of "real"  superheroes.  Even though I think it's impossible, theoretically,  what if...


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Biology

Katlin From Springville, NY, asks,

How many languages are there in the...


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Biology

Avishan From the Internet, asks,

What gives yellow corn and blue corn its color? What is the specific pigment and...


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Biology

Jeremy Wolf From Kintnersville, PA, asks,

Has anyone tried a vaccine (attenuated, similar pathogen, killed, toxoid, or subunit vaccine) for HIV? If so, what were the results? What are the...


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Biology

Jim From Philadelphia, asks,

Why doesn't a person lose 9 lb when they consume 1 litre of ice water? If a calorie is the energy it takes to raise 1 cc of water 1 deg C then to...


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Biology

David asks,

Physicians often want to know the glucose and lipid levels in a patient's blood and whether proteins are present in a patient's urine. What do these...


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Biology

Brandon From cleveland, asks,

How long does it take bubble gum to digest after it is...


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Biology

Drew Radue From Wisconsin, asks,

Will Cyanide be a poison to brewer's yeast used to make...


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Biology

Davina From Vancouver, Canada, asks,

Why is it that when you get the chicken pox when you're little it's not as bad as getting it when you are...


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Biology

Kate Cunningham From Wellington NZ, asks,

I saw you answer to the composition of banana peels, but I would really like to know what chemical compounds are in a banana peel. An old wives tale...


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Biology

Katie From the Internet, asks,

Does temperature affect the performance of the mind? Such as slowing down the thinking process? Is there a change at all?...


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Biology

Dean Jones From Saskatoon, asks,

Why do we not have a mouthwash that prevents plaque buildup and, hence, gum...


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Biology

Angie From New Tripoli, PA, asks,

What goes on during the change between isometric and isotonic in muscle cells? What does it look...


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Biology

theo baker From santa barbara, asks,

I have heard somewhere that there is what could be described as a secondary brain in the large intestine, or maybe it is just something that I have...


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Biology

Ashis From Mumbai, asks,

I want to know how ascorbic acid (vitamin-c) is metabolised in the body of...


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Biology

Bethany Garrison From Summerville, SC, asks,

My mom and I are having an argument. She claims that the gene for blonde hair will be wiped out within the next four generations simply because it...


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Biology

Reatha Tillman From Ocean Pines, MD, asks,

A student gave me 4 pairs of different duck and goose feet. How can I preserve them? Do I dry them out or put them in formalin? (p.s. I teach marine...


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Biology

Dan Van Brunt From Thunder Bay, asks,

Recently a friend of mine took a picture of what he thought was a grasshopper out at his camp far from city life. I later took a look at his close-up...


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Biology

Marc Baldwin From the Internet, asks,

In their book on the 'Mammals of Britain and Europe', MacDonald and Barrett state that Red Foxes (_Vulpes vulpes_) will sometimes cache the heads of...


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Biology

Bryn Williams From Vancouver, asks,

If the telomeres of a cloned organism are smaller than a non-cloned organism, and therefore may succumb to an early death, how is it that clones...


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Biology

Jessica Hawthorn From Lac La Biche, Alberta, Canada, asks,

What experience and education should I get for a career in...


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Biology

Manny From Kanata, Ontario, asks,

Does caffeine affect  boys and girls' blood pressure...


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Biology

Rick James From palm springs, asks,

I'm just curious why we humans are the only species on this planet that have to manufacturer clothing to protect us from the elements, use fire to...


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Biology

Nesa Xiong From Sacramento, CA, asks,

How long does it takes your hair to grow? How many years and how many...


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Biology

Robin From Brighton, asks,

How is it that some people can 'float' while others seem unable to? In the sea I can quite happily float on my back for ages without even moving,...


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Biology

Andrew Brown From New york, asks,

What does the word enzyme mean and how does it work in laundry...


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Biology

Frieda Trowbridge From Central Butte, Sask, asks,

Could you tell me the symptoms when given either thalium or...


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Biology

Brian From Vancouver, BC, asks,

I've heard that alcohol can be passed to a baby through breast milk. Is this true and if so what is the concentration of alcohol in mother's...


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Biology

Dennis From the Internet, asks,

Could you explain how to complete and find the genotypes and phenotypes of sexlinked, multiple allele, codominant traits in a human. I can not find...


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Biology

Kirsty From Cumbria, asks,

Why do both sexes of dabbling ducks have brightly coloured bills?...


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Biology

Tyler From Suwanee, Georgia, asks,

Why did humans develop pubic hair (facial, under arm, etc.)? And also why does the male voice change so much more than the female voice at...


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Biology

Diana From Tucson, asks,

How large is a human genome? What percentage of the DNA in the Human Genome actually codes for...


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Biology

Brendan Chase asks,

Who is David...


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Biology

Erin Price asks,

How can I demonstrate the relationship between magnetism and organisms? ...


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Biology

Linda From Toronto, asks,

I have heard that the papiloma virus could be transmitted not only through sex but just by a simple handshake. Is that possible? How can we protect...


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Biology

Kayli Taylor From Belleville, asks,

I would like to know if you could help me in my quest to making harsher laws about Driving Under the influence of Marijuana (DUM). I am wondering if...


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Biology

Mike From Hamilton, asks,

Who discoverd dinosaurs?...


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Biology

jehan asks,

Are liposomes currently being used to cure cystic fibrosis. How is this done? ...


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Biology

Sara J asks,

What causes a human embryo heart to begin beating? And when a cell divides does it "spark"?...


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Biology

Michelle asks,

I want to study and work with animals and their environment. Is there an occupation like this? What is it called?? ...


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Biology

Linda Horsman From Gibsons, BC, asks,

What is the cause of static electricity? Also, I'm doing research for a book and I wanted to know if people have small amounts of electrical activity...


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Biology

Sara J Shaw From Northwood, NH, asks,

I have aplastic anemia, and from what I understand, my T-cells are destroying the stem cells from my bone marrow as they are produced. After reading...


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Biology

Bertha Rodriguez asks,

How is Chemistry involved in the field of Psychology? ...


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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

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

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

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

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

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

Lisa Fondelius From Borås, Sweden, asks,

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


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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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