For a mark-recapture survey, when there were 12 marked rabbits recaptured to the total 150 rabbits (includes both marked and unmarked) in the second capture, we know scientisits have initially marked 92 rabbits at the beginning. The estmated total rabbit population would be

The estimated total rabbit population would be

Explanation:

Given -

Total number of rabbit marked (m)

Total number of marked rabbit recaptured(n)  

Total number of initially marked rabbit (M)

Let the total rabbit population be "N"

Now as we know that

On rearranging, we get the following equation -

Substituting the given values in above equation we get -

The estimated total rabbit population would be

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme