Answers to Biology Questions

Do we all have the same number of nerve endings, regardless of body size?

Everyone has gut bacteria that keep them healthy. How do babies get them if they're born by caesarian section?

Are the plants enough?

Or is the idea all smoke and mirrors?

And could this be a new model for farming?

Does it depend on the plant? Or on the soil?

Listener Lorna had this query about her own cancer treatment...

And why don't hydroponic farms have this problem?

Will it sterilise the sponge?

Is it hard to keep up?

How healthy is soy?

How fast do drugs leave the body?

Is there a better way to lose those calories?

Should I drink what I boiled my veg in?

Is it easy to look for toxins?

Why do some people sneeze when they eat dark chocolate?

We finally address the real question: why do banana peels sometimes have 3 segments, sometimes 4 or 5?

DNA mutates all that time, so what's to stop it affecting an important part of our biology?

Tim Revell demonstrates how a computer examines a face...

And what about the rest of the world too?

Would your body understand it, and what would it do?

Why are some of us drawn to food when we're stressed?

And how would they know your blood group anyway?

Where do birds sleep? If it's in trees, why don't they fall out when they nod off?