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Re: [Phys-l] Pres. Obama to eliminate testing portion of NCLB




On Aug 9, 2011, at 10:11 AM, carmelo@pacific.net.sg wrote:


It is funny physicists are so eager to solve biology problem.
(Perhaps, physicists should help to solve Obama's economic problems.)

Actually, physicists have defined heat as a process, but many explain
with "flow of heat", thus suggesting heat as a noun.
Many textbooks are also using heat as a noun.

Maybe biologists are laughing at physicists...

I'm not laughing... I'm simply frowning that physicists don't know their biology enough to suggest rational questions and answers to a biology exam. If these silly questions were on an exam written by biologists or biology teachers, then shame on them... physicists, don't make it worse by muddling the issue.




Best regards,
Alphonsus

Quoting John Clement <clement@hal-pc.org>:

They are decomposers and actually feed on dead vegitation. This is of
course completely different from green plants which feed on air and water
plus trace amounts of minerals. Mushrooms extract significan nutrition from
the soil, while green plants do not. Green plants derive most of their
material from the air.

Trees DO NOT eat from underground, they manufacture their substance from the
air and water. They only extract a small amount of material from the soil.
It is true that the water comes from the ground, but the idea that the soil
provides the material to make green plants is a huge misconception. By
weight most of the material comes from the carbon dioxide from the air. OK,
plants do contain water.

If you grow a large plant in a pot and weigh the soil before and after you
grow the plant you will notice very little difference. This is assuming you
can get all of the soil off of the roots. Indeed you can grow plants and
end up with a plant whose weight is many times the original weight of the
soil.

Ah well, you find these misconceptions all over the place, especially on
these simple web answers. Does anyone know how to contribute to that Wiki
to correct the misconception?

John M. Clement
Houston, TX


What does mushroom eat?

Answer:
it eats like a tree, from under the ground.
http://wiki.answers.com/Q/What_does_mushroom_eat

How do mushrooms eat?

Answer:
they get their nutriants from the soil beneath them. it
provides water
and substance for them.
Read more:
http://wiki.answers.com/Q/How_do_mushrooms_eat#ixzz1UUPGtpxk


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_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l