Why do organisms with less cells require more food?

MadSci Network: Environment & Ecology

Subject: Why do organisms with less cells require more food?

Date: Sun Nov 12 23:50:24 2006
Posted by Genia
Grade level: 10-12 School: No school entered.
City: Richmond State/Province: B.C. Country: Canada
Area of science: Environment & Ecology
ID: 1163400624.En

Message:


I don't understand the relationship between the number of cells in an organism 
and the amount of food the organism needs to survive.  I also don't understand 
why larger animals require less food than smaller ones, and how that is 
connected to the number of cells in that organism or to the total surface area 
of those cells.

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