Sam from Mumbai, India asks

I have learned that our whole body is made of chemicals. Then our every action must be predefined...

Yevgeniy from SI asks

Can you hear a bat flap it's wings if it is relatively close say 1-2 meters?

Michael Fattori from Toronto, Ontario asks

If our body is made up of cells that are always regenerating, and replacing older dying cells, how...

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...

D from Toowoomba asks

I have been told that it's useful to plot changes in systolic and diastolic blood pressure when I...

Al Ullman asks

What is "route dependent toxicity"?

Nameless from Internet asks

Chloroplasts, which help give the cell energy using photosynthesis, also make the cell green,...

eric from lynbrook, ny asks

What animal has the highest level of testosterone in their body?

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...

Travis from Mt Vision asks

What's the length of time the body needs to get rid of LSD, opiates, marijuana, and other drugs? I...

Nijin from KHD asks

Is there any living thing that doesn't need water to survive in the whole life? If there is...

Jason Ting from Beijing asks

Can phytoplankton live with only nutrients not sunlight?

David from the Internet asks

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

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...

Alexandra from Coquitlam asks

What are thoughts made from? Are they measurable?

Lisa Pearce from Gympie asks

Whenever I drop a piece of cork, plastic or metal into a container of water, it always floats on...

chen from the Internet asks

How does plant take in sunlight?

Meghan from Chelsea asks

How is it possible to have 2 different colored eyes? I have a blue and a brown eye. I would like...

JR from Houston asks

Does your gag reflex trigger the epiglottis to open or close?

Charlie Price asks

What is the name of a baby orangutan? Does the male and female adult orangutan have a name?

Leeanne from Sebrevois asks

Can dogs and cats understand what people are saying? If not then how do they know to get off...

Crystal Anderson asks

How old can mice get?

Randi Trevena from Regina Beach asks

hi i was just wondering whether or not a child can have a different color of eyes that both there...

Robert Young from Castleton, England asks

I am currently conducting an experiment to do with the medicinal properties certain species of...

David J. Gardner from Toronto asks

With regard to genetics and anthropology I'm having a hard time understanding the difference...

David J. Gardner from Toronto asks

I saw a Richard Dawkins lecture in which he claimed that the constituent molecules and atoms that...

Brenda from Sydney/aust asks

I have read about the bobtail gene in dogs and wonder if the reason it is found in herding dogs is...

Adrian from Vancouver asks

I heard someone explaining that whales and dolphins are not fish because they were in fact mammals....

Saima from Calgary asks

I heard that Inuit women have the most toxic breast milk of any population of humans. What is in it...

Mona from London asks

I was reading about class I MHC (major histocompatibility complex) molecules and in the book it was...

green hornet from the Internet asks

how many second the people before blink again

bob from coquitlam asks

Why did the poppies grow in Flanders fields?

Sanjeev Kumar from New Delhi asks

Why is it impossible to integrate photosynthetic machinery genes into animal cells....

Henrik from the Internet asks

Some people like to stand on their head or hands so they can get a lot of blood in their heads. Is...

Richard Dinning from Mississauga asks

What would happen, given the loss of polar ice and it's deleterious affect on polar bears, if we...

Joshi from Pune, India asks

During Biology study, an idea clicked in my head about AIDS. We say that HIV virus cannot be...

Mrs. Yoe's Grade Ones from Innerkip Ontario asks

Why do geese fly in a V?

Charlie from Astana, kazakhstan asks

How is it that the over-the-counter pregnancy strip test is so fast and specific versus the common...

Zack from LOS ANGELES asks

The puffin has always been my favorite bird. Not just because they are so cute, but also because...

Liam Christy from Kamloops asks

I was wondering if it's possible to extract viable DNA amateurely. I want to conduct an...