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helpppppppp!!!(science) (Page 7)

sweetgurl Senior Member
sweetgurl
sweetgurl

Joined: 05 January 2005
Posts: 229

Posted: 23 January 2005 at 1:43pm | IP Logged

hey manjot, ill try to help, leh me search n tell u in  a bit. mera dimaag abhi so raha hai mugar try kar lehti hoon 4 uLOL..leh u noe in a bit

 

mango Global Moderator
mango
mango

Joined: 08 December 2004
Posts: 9255

Posted: 23 January 2005 at 1:44pm | IP Logged
LOL
*Anjali* IF-Dazzler
*Anjali*
*Anjali*

Joined: 13 August 2004
Posts: 4673

Posted: 23 January 2005 at 10:24pm | IP Logged
wow, nish1--you reeeeeeeeeeally know your astronomy Clap

Originally posted by Manjot

next question:::

Why do terrestrial (land) animals use internal fertilization but aquatic (water) animals use external fertilization?

 



Here's what I know, Manjot.  Land animals can't use external fertilization b/c the egg and sperm can't survive out in the open air.  They need the internal environment to survive.  However, for aquatic organisms, it's much easier for the egg and sperm to meet in the water rather than internally.  Hope this helps...let me know if you have other Bio questions Smile
ritu Goldie
ritu
ritu

Joined: 14 August 2004
Posts: 1355

Posted: 23 January 2005 at 10:32pm | IP Logged
I think i should tell misha about this ANJALI TUTION CENTRE. She will be appearing for her 10th boards this year. LOL
*Anjali* IF-Dazzler
*Anjali*
*Anjali*

Joined: 13 August 2004
Posts: 4673

Posted: 23 January 2005 at 11:17pm | IP Logged
Originally posted by ritu

I think i should tell misha about this ANJALI TUTION CENTRE. She will be appearing for her 10th boards this year. LOL


LOL Ritu!!  Well as long as it's Biology (and maybe some chem and physics)-related, I can definitely help out! Smile
mango Global Moderator
mango
mango

Joined: 08 December 2004
Posts: 9255

Posted: 24 January 2005 at 5:41am | IP Logged
Originally posted by anjali308

wow, nish1--you reeeeeeeeeeally know your astronomy Clap

Originally posted by Manjot

next question:::

Why do terrestrial (land) animals use internal fertilization but aquatic (water) animals use external fertilization?

 



Here's what I know, Manjot.  Land animals can't use external fertilization b/c the egg and sperm can't survive out in the open air.  They need the internal environment to survive.  However, for aquatic organisms, it's much easier for the egg and sperm to meet in the water rather than internally.  Hope this helps...let me know if you have other Bio questions Smile

thanx anju dunt worry more question coming up soon maybe in the evening

nish1 Senior Member
nish1
nish1

Joined: 27 December 2004
Posts: 413

Posted: 24 January 2005 at 10:35am | IP Logged
[QUOTE=anjali308]wow, nish1--you reeeeeeeeeeally know your astronomy Clap

Thanks anjali but i don't know that much astronomy...i am not majoring in astronomy...thanks though
mango Global Moderator
mango
mango

Joined: 08 December 2004
Posts: 9255

Posted: 24 January 2005 at 11:36am | IP Logged

What are the 3 characteristics that make a metallic element different from a non-metallic element?

 

Adult sea anemones live in one location and do not move from it. Outline ways in which sexual reproduction would help them overcome a toxic waste spill.

 

 

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