Biology high school questions about dynamic ecosystem :D

[easternuser]

Biology high school questions about dynamic ecosystem :D

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Post by easternuser » Wed Oct 05, 2011 7:55 am

Thanks, for helping! God bless your generous soul

1.
Why is it that the tse-tse fly in an ecosystem comprising of zebras and grass has a number greater than the zebra?

2.
Why do hawks have the highest level of insectide accumulation over a period of time, after insectide is sprayed to kill caterpillars?

3.
The size of the pond become smaller due to the growth of amphibious plants from the centre of the pond. True or false?

4.
Can microorganisms be used to produce antibodies?

P.s. Some of the questions here may be subject to faulty, due to the book I'm using had once provided me with two wrong answers. I'm just checking with you guys to see which is which is right thanks again!

[canalon]

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Post by canalon » Wed Oct 05, 2011 1:17 pm

Well what do you think?

[JackBean]

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Post by JackBean » Fri Oct 07, 2011 1:38 pm

I don't get the first question (maybe I do, but I'm not much sure about that).