Cumulative General Science/Technology Quiz

[Aramazd]

It's been well over 72 hours and ainwood hasn't asked another question, so...
What is photoperiodism?

 

[Genocidicbunny]

Does it have something to do with how animals and plants sense the change in time/daylight?

 

[ainwood]

It defines the direction of the movement of this:

EDIT: did I win? did I win? I surely must have...

Sorry, no.

Very basically, it is a measure of the interchangeability of gas - a gas appliance will be rated to take gas with a certain wobbe range. It can burn any gas within this range, without concerns of flame lift-off / sooting / lightback etc.

 

[Mise]

It's been well over 72 hours and ainwood hasn't asked another question, so...
What is photoperiodism?

Does it have something to do with how animals and plants sense the change in time/daylight?

Yeah, that would be my guess. The reason why we feel sleepy when it's dark.

 

[aaglo]

Photoperiodism: It's a pretty interesting constant, it's a ratio of no. of pictures posted in the net Pn and one's age a. In short

Pn/a=constant

 

[Aramazd]

Does it have something to do with how animals and plants sense the change in time/daylight?

No, but your on the right track.

 

[Truronian]

How plant grow towards light? (Complete guess)

 

[aaglo]

How plants regulate their growth and dormant seasons?

 

[nonconformist]

The way plants switch from photosynthesising during the day and respiraation at night?

 

[brennan]

The fact that our waking/sleeping cycles are influenced by the amount of light we experience & that the timing can be changed by long-distance travel/working conditions etc?

 

[peter grimes]

Photoperiodism is the response of plants to the length of daylight. In some plants (deciduous trees, for example), decreasing length of day results in the onset abscission - when the leaves start to change color and fall to the ground. Photoperiodism is also responsible for a plant's awakening after the winter and sprouting in the spring. It's essentially the way plants know what time of year it is by registering the changing length of day as the year progresses.

 

[Aramazd]

Photoperiodism is the response of plants to the length of daylight. In some plants (deciduous trees, for example), decreasing length of day results in the onset abscission - when the leaves start to change color and fall to the ground. Photoperiodism is also responsible for a plant's awakening after the winter and sprouting in the spring. It's essentially the way plants know what time of year it is by registering the changing length of day as the year progresses.

You got it!

 

[aaglo]

Well, I got it before - but not in as many words (check post #508)

 

[peter grimes]

Yeah - I thought Aaglo had the essence of it.

I can't think of a question right now, so if Aaglo can think of one before I do, the question is his

 

[aaglo]

Okay, this is pretty simple - and maybe a bit on the easy side too

What is invar?

 

[LAnkou]

a finnish word meaning:

"Nokia is the best brand of cellular!!! There's no Ifone or Hiphone version of the N95!!!"

 

[Genocidicbunny]

Its a nickel-zinc alloy thats used for precision due to its good thermal properties.

 

[aaglo]

stickciv got that right

 

[Genocidicbunny]

Whoever wants to can have it.

 

[StarWorms]

What are homeotic genes, what do they do, and what is special about them? Name the genes in bithorax and explain what happens when you knock one out (or down) in Drosophila.