59.81

did it unknowingly

the kind of hands-on knowledge

unbeknownst to you

at work and not at all

has a working knowledge of

the knowledge of business

did it unknowingly

did you know about it

or did you do it unknowingly

So, 78% of Earth’s atmosphere is nitrogen.

What is the next most common gas?

Oxygen, at 21%

the kind of hands-on knowledge

the kind of knowledge that is practical

the kind of experience that comes with practice

What is the role of oxygen on planet Earth?

Oxygen plays a critical role in respiration.

unbeknownst to you

unbeknownst to anyone on the team

no one had any knowledge of this at any time

So, oxygen is critical in respiration.

And respiration does what exactly?

Respiration is the energy producing chemistry that drives the metabolism of most living

at work and not at all

at work but not working at all

at work but not at all working

Do all living things breathe oxygen on Earth?

All but one.

Which one does not breathe oxygen?

The parasitic bacteria known as Henneguya Salminicola?

has a working knowledge of

knowledge of how to do things

knowledge of how to go about this business

knowledge about the workings these kinds of things

What is Henneguya Salminicola like, and why doesn’t it need oxygen?

It is a parasitic bacteria which does not have mitochondria in its cells.

the knowledge of business

knowledge of what it takes

what it takes to live a good life

What is the role of mitochondria in a cell?

Mitochondria converts oxygen into units of energy for the cell.

Audio Credits: NASA

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