Biology - September 2007

a. Matter is cycled through ecosystems; energy is not.
b. Energy is cycled through ecosystems; matter is not.
c. Energy can be converted into matter; matter cannot be converted into energy.
d. Matter can be converted into energy; energy cannot be converted into matter.
e. Matter is used in ecosystems, energy is not

Thanks!!!

2007-09-09 14:35:34 · 5 answers · asked by . 6

2007-09-09 13:46:11 · 1 answers · asked by zingowner 2

All the species are supposed to be male and female. But theres sexual diversity and it seems to be so natural. It existed long ago before society as we know it too. Do you think homosexuality and human sexual diversity is ACTUALLY an evoling process of the human race?

2007-09-09 11:36:51 · 6 answers · asked by Anonymous

2007-09-09 11:31:38 · 1 answers · asked by Anonymous

2007-09-09 11:11:55 · 1 answers · asked by damigurl05 1

just wondering. =] I'm having a hard time deciding for a project im doing in Biology. Heh.

2007-09-09 08:42:44 · 4 answers · asked by Anonymous

the part?

2007-09-09 08:13:37 · 1 answers · asked by Terri L 2

Or do you think that genes and DNA alone are responsible for our cell biology?

2007-09-09 07:12:39 · 7 answers · asked by LUCKY3 6

2007-09-09 07:03:26 · 4 answers · asked by wickedwitch1992 2

If you get what i mean,like "my heart skips a beat.." when in love,but speaking in biology terms,the heart only consists of 4 chambers,it doesn't have anything to do with feelings of 'love',does it?like it doesn't control our feelings,right?no rude answers pls..and thanks.

2007-09-09 06:14:32 · 10 answers · asked by rose etoiles 3

Explain yourself

2007-09-09 06:07:33 · 3 answers · asked by jamet002 2

2007-09-09 06:01:56 · 9 answers · asked by bluethunderburst 1

2007-09-09 05:44:01 · 15 answers · asked by garik 5

2007-09-09 03:54:28 · 2 answers · asked by Anonymous

2007-09-09 03:50:06 · 2 answers · asked by Anonymous

2007-09-09 02:46:37 · 12 answers · asked by bluethunderburst 1

People say to gargle with warm salt water when you have a sore throat. I understand why this is a good idea if you have a bacterial infection, but does it help viral infections, too?

2007-09-09 02:35:47 · 2 answers · asked by Joy R 2

i need to know for my homework... and i can't find any thing, can someone help me

2007-09-09 00:58:40 · 7 answers · asked by Anonymous

2007-09-09 00:55:22 · 1 answers · asked by Anonymous

I know fire isn't living... But why EXACTLY is fire NOT living?

It's for a project.

2007-09-09 00:12:34 · 11 answers · asked by Anonymous

can you please give me at least 5 examples of
OSMOSIS and DIFFUSION that we do in daily life...

and i need also an explanation..

faster!!!

2007-09-08 22:49:23 · 2 answers · asked by Anonymous

(in reflex action)
sensory neuron are those which carry information from the receptors to the spinal cord
motor neurons are those which carry information from the spinal cord to the effectors
what is relay neuron??

please explain in simple language and thanks for your time

2007-09-08 18:30:34 · 6 answers · asked by Anonymous

They get burned and they continuo to fly to the light bulb until they die.

2007-09-08 18:07:46 · 5 answers · asked by Anonymous

Using fake pumpkin and cut into it and placed a strofoam ball in it. I want to use the pumpkin to be creative but dont know what it could be because the large strofoam ball is the cell itself it is where all the organells are going onto. PLEASE HELP!! THANK YOU SO MUCH.

2007-09-08 17:08:04 · 3 answers · asked by Anonymous

2007-09-08 14:55:18 · 2 answers · asked by ellie 2

2007-09-08 13:07:35 · 3 answers · asked by Chef Lau 2

in kansas city, kansas parents are questioning darwins theory of the scientic method

2007-09-08 12:04:37 · 10 answers · asked by awtson 1

a. windpipe
b.diaphragm
c.blood

2007-09-08 11:32:45 · 3 answers · asked by geidy p 1

Hello! Does anyone have any ideas as to what I could compare a cell to? For example, I could compare a cell to a computer--
the mitochondria is the power supply, and the nucleus would be the motherboard.

2007-09-08 09:04:22 · 4 answers · asked by Anonymous

2007-09-08 08:49:39 · 5 answers · asked by Anonymous