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

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

Erin Harris asks,

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


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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

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

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

Kevin Pagn From Vancouver, asks,

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


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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

Amie From West Harrison, asks,

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


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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

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

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

Anita.S asks,

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


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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

Totoro asks,

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


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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

Sarah Spratt asks,

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


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Biology

Ross Richardson From Battle Creek, MI, asks,

How long does it take for alcohol to be detected through the skin after your first drink? Is there currently a sensor out there to detect alcohol...


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Biology

Christina From Orland Park, asks,

How do chameleons reproduce body...


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Biology

sabiha yamin From lahore, pakistan, asks,

I want to knock out the PHB depolymerase gene from the genomic DNA of a bacterium. Can you suggest possible ways to do it chemically because I don't...


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Biology

Ashley From Langenburg, Saskatchewan, asks,

Does population density affect fish growth rates? I'm trying to determine if population density affects the growth rate of fish. I have two...


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Biology

Michael From Winnipeg, asks,

I've been doing a science fair project testing the effectiveness of Lactaid(TM) lactase. From a competely pristine Lactaid bottle, I transferred...


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Biology

Reggie Lykins From Cincinnati, asks,

I have two questions. 1. Do jellyfish have ears and if so can they hear well? 2. How many times can the same jellyfish sting...


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Biology

Dave From Sutton, asks,

Are there foods to eat which lower/reduce harmful cholesterol levels, or is this achieved by adhering to the kind of regimen explained in Rick...


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Biology

Robert Wahl asks,

Is it true that bats don't pass their food through but vomit it up while they are hanging upside down as they...


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Biology

Nikhil Bhansali From New Delhi, asks,

Why are the lipids found in the human body mostly even...


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Biology

Alvina Chung From Sydney, asks,

The first four facts below suggest that the earth should be getting heavier and heavier - but it isn't! Why is that? *the human population keeps...


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Biology

Ed Kasica From Oldsmar, florida, asks,

Why does a magnetic field in the form of a bar magnet effect the movement of a planaria? Does it have iron from its enviroment in its...


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Biology

Clare Reading From Mesa, asks,

What is the pH of Diet Pepsi? (or cola,generally) and... Does smoking affect the body's pH? If so, does it create an acid or alkaline...


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Biology

Sarah From Northampton England, asks,

How do you measure the pH of soil? How do you make up a solution of different pHs? What is the best seed to grow to do an experiment in to how pH...


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Biology

Val Mullen asks,

Is there really a tree in Tasmania called the Huon Pine that is 20,000 years...


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Biology

Peter Griffin From Beaufort, SC, asks,

Are all non-toxic claiming products really non-toxic? And is there any simple way (such as a way that doesn't use very expensive equipment) to test...


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Biology

Wilma de leon From Philippines, asks,

What is the reaction between a chitin--the polysaccharide intermediate between protein and carbohydrates which can be found in the exoskeleton of...


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Biology

aparna From Petaluma, asks,

Why is blood...


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Biology

Ian Gordon From Exeter, Devon, UK, asks,

Since puberty I have always been tall and thin with very long legs. I was a fair player of rugby football, but never got into the best teams because...


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Biology

bbg From the Internet, asks,

Are there any Canadian scientists that have contributed to the field of bioremediation? ...


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Biology

Marc Doucet From Bathurst, New Brunswick, asks,

Are the pores of the cell membrane composed of protein molecules or are they simply holes in the membrane where the membranes touch? How then can...


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Biology

vanessa demelo From paris, asks,

Why does insulin resistance induce weight gain? I don't understand because insulin is suposed to promote lipogenesis in normal patients. Then, if...


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Biology

Nick Reed From Cherry Hill, asks,

I have a question regarding starfish, or seastars, whichever you would like. Is there a species of seastar that has an exceptionally fast...


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Biology

Harish From Scarborough, Ontario, asks,

I want to know if we inject cobra's venom into a rattlesnake and rattlesnake venom into cobra what ...


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Biology

H.D. Lail asks,

What is the difference between animal hibernation and a human coma? These states appear similar, because both involve a level of...


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Biology

Holly asks,

What is the difference between a dolphin and a...


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Biology

Steve Tran asks,

Hi, my name is Steve and I am a junior bodybuilder. Which one gives you the red tan, the normal tanning lotion or vegetable oil? and...


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Biology

Leah W. From Duluth, asks,

What is the smallest living thing? What is the largest living...


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Biology

Michel asks,

If Humans and Apes are related, why aren't we able to reproduce together? ...


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Biology

Harrison From the Internet, asks,

Why does decaying food cause gas? I have been trying to find resources but can't find any could you be of any...


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Biology

Arnold J. Wallmann asks,

What causes albino-ism in people? Which chromosome is the albino gene...


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Biology

Mary Phipps asks,

Is calcium carbonate (ground limestone) biodegradable? Will it break down during composting? I want to compost manure and wood shavings and have...


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Biology

Nabita From Montreal, asks,

I just wanted to know if iron levels in a plant such as siverbeet can be increased by adding iron to a plant each...


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Biology

TJ From Thunder Bay, asks,

Last spring and summer there were millions of army worms creeping all over everything. Maybe worse this year. Why do they creep around on the...


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Biology

John Jones asks,

Why has our departmental tarantula, who lives in my office, retreated into a cardboard tube and spun webs over both...


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Biology

Dawn From Santa Clarita, asks,

Is a seed a living thing? If so, how do you prove it? Is it living before you add...


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Biology

Stevi asks,

How does shaking seeds in a jar lined with sandpaper affect the way they germinate? We shook lima bean and pea seeds in a jar lined with sandpaper...


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Biology

Anton St-Jacques From Kingston, asks,

I heard that all cells only come from existing cells. If this is true, how did the first cells appear on Earth to create the amoebas if there were no...


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Biology

Karie From Toronto, asks,

Why do kids with blonde hair have dark brown hair when they're older? Is it the same process as when hair turns...


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Biology

Sharon Johnson From Tobermory, asks,

Can decomposing cedar wood chips or household compost cause environmental problems in surrounding soil and/or water tables? Long story-short: my...


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Biology

Meghan asks,

Do you have any information about Canadian scientist Dr. W. A. Smirnoff? He works on the spruce budworm...


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Biology

deepak singhal From Bangalore (India), asks,

Before getting married should we consider blood groups of both individuals? Is there any limitations that a particular blood group person can marry...


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Biology

tina From the Internet, asks,

Will pea seeds germinate slower in a liquid substace other than water? why? I am conducting an experiment related to this and I can't seem to find...


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Biology

charl mai From Vancouver, Canada, asks,

Among the techniques that are being used to determine the identity of an unknown person, for instance: a person that is burnt or decayed long time...


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Biology

Yossi Truzman From Ra`anana, asks,

In our breathing system we have two coenzymes NADH and FADH2. Why do we have two coenzymes? And why is the NADH more efficient than FADH2, since FADH...


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Biology

Satya From Scarborough, Canada, asks,

Which part of the body has highest ph value?...


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Biology

Nijin From KHD, asks,

Is there any living thing that doesn't need water to survive in the whole life? If there is anything, I want to know about...


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Biology

Tom Henson From Bettendorf, Iowa, asks,

I am doing a science project on how light affects plant growth. If you could answer my 10 questions it would be a great help: 1.Does light color...


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Biology

Ric Martin From Houston B.C. Canada, asks,

Can someone tell me what Canadian frogs and toads are vocal? We have several types here, but they do not make a sound. And we love the sound of ...


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Biology

Karen From Ottawa, Canada, asks,

Why do your fingernails grow a lot faster than your...


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Biology

jacqui From Stockleigh Pomeroy, asks,

Explain recessive gene disease and what happens to the DNA to cause parents to be...


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Biology

Kirandeep From Ludhiana, asks,

Why do proteins form lather on making their...


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Biology

Nameless From Internet, asks,

Chloroplasts, which help give the cell energy using photosynthesis, also make the cell green, right? So why is it that not all plants are green or...


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Biology

Christina From Orland Park, asks,

Why are most people right handed instead of...


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Biology

Justin Murphy From Coquitlam, asks,

How does what we smell affect what we...


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Biology

Charcoal From the Internet, asks,

What makes classifying dogs in breeds different from classifying humans in races? I thought that breed is different from race because unlike the...


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Biology

Jonathan Weiler asks,

Would it be possible to clone dinosaurs? ...


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Biology

Andrea From Sydney, Australia, asks,

I understand that when toilet paper gets wet eventually the cellulose fibres break apart thus biodegrading, but exactly how and why do they break...


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Biology

Aditya From Noida, India, asks,

How does plant's inner cells...


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Biology

Chloe Jones From London, asks,

Why do trees lose their...


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Biology

Marc Baldwin From the Internet, asks,

Can someone tell me how scientists are able to get an idea of how many foxes are in an area simply by looking at the amount of fox excrement around? ...


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Biology

Asli Tamer asks,

How do bacteria use rhodopsin to create energy? ...


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Biology

David Holt asks,

How do farmers produce a product like seedless mandarins if they don't have any seeds to...


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Biology

The Tucker Family From Hamilton, asks,

How many people have ever lived on earth? We have found data giving the population at differen points in history but not the total number over all...


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Biology

Richard Morley From Flesherton, asks,

Do you have a "Sea-Monkey" life...


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Biology

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

Why is sterilizing & using alcohol effective against...


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Biology

Terry Hare From Oshawa, asks,

Why are most scallops white and some are yellowish brown to almost an orange...


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Biology

Anonymous From Queens, NY, asks,

I would like to know why the bananas has that semi circular shape. I wonder if it is because the gravity of earth, or the light from the sun or...


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Biology

Heather Purdie From Edinburgh, asks,

At what age does your heart stop growing? I have just watched a program and a young girl was given her dad's heart and I wondered if it would...


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Biology

Cynthia Everhart From Leesburg, asks,

My neice is being tested for an unknown cause to her developemental delay. She has recently been tested for Fragile X syndrome. I know that Down...


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Biology

Donna Creighton From Havre de Grace MD, asks,

Do noses and ears continue to grow throughout the...


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Biology

Christina From Kamloops, BC, asks,

What is the Vir C gene/protein responsible...


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Biology

Steven Kelliher From Abington/ MA, asks,

I know this must get asked a lot, but I was wondering, and doing research on the topic and am looking for expert opinion on the matter. Who really is...


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Biology

shane From doylestown, asks,

How do scientists type your blood? How do they find out your blood...


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Biology

Eddie Curtis From Portland, asks,

What differences are there in the three different types of...


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Biology

Nijin From khd, asks,

I read in books that bees cannot identify the colour white. Then what will the bees see instead of white...


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Biology

samantha From Sarnia, asks,

Is it true that only female bees can sting you? And if it is, why is that?...


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Biology

David From the Internet, asks,

During cellular respiration, why can't NADH pass its electrons to NAD+ across the inner membrane of mitochondria? Why does NADH pass its electrons to...


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Biology

NIKHIL BHANSALI From New Delhi, asks,

I have an e-DNA (environmental DNA) sample in a vial. How can I learn if the given e-DNA sample is from a living species or a dead species or from...


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Biology

Mike From the Internet, asks,

I have a question which is a bit strange but in all honesty i don't know and i was hoping you could help me. There are many films out where someone...


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Biology

Danielle Panchuk From Calgary, asks,

Why after drinking massive amounts of alcohol, which is a liquid, do you wake up dehydrated the next...


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Biology

Leo Hong From London Ont., asks,

1. If the earth's population is about 6.2 billion now and it will double lets say every 35 years, how will the earth hold 12.4 billion people in the...


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Biology

Al Ullman asks,

What is "route dependent...


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