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The Jungle

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Submitted By faspiazu
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Biomass pyramids
First we have to know what biomass is. It is the total material of organisms that live ina a determinate place, to represent the mass of each individual we use pyramids that are classificated by the type of trophic level that belongs.

Side Background
The objective of this project is to construct a biomass pyramid for a given site, in this case it was a dry one. On Monday , third of December of 2012, my group of ib went to the school backyard cause our objective was to make an environmental experiment in dry soil. At the beginning we made quadrates (1m x 1m) with sticks and rocks .Then we wait for one hour, the land was totally dry with a very little vegetation. The only living organisms that we found were
Ants

Worms
Plant
Data collected
At first we grabbed every living organism we saw and we put them inside the zip block. This example was taken to the laboratory for the checkout. Then we put them in a balance to measure the weight.:
Table #1: Data collected from observation Spices | Number of individual | Weight for individuals (gr) | Plants | 1 | 0.07 | Worm | 1 | 0.10 | Ants | 3 | 1.99 |

From this 3 spices that I found I will demonstrate what they eat and from which tropic level are they.
Plants are considered producers which are the organisms that capture energy from the sun or from chemical reaction to convert carbon dioxide to organic matter. All this process is known as photosynthesis and respiration.
Worm are ants are considered detritus feeders (detrivores) which they feet on dead plant material ,such as fallen leaves, branches and trunks of dead trees, dead grass , defeat wastes of animal and dead animal bodies.
Table #2: Spices | Tropic level | Weight (gr) | Plant | Producers | 0.07 | Worm | Detritus feeders | 0.10 | Ant | Detritus feeders | 0.90 |

Graph 1

Graph 2, Average

Possible errors
We found two possible errors in this project. The first one was that as we were in their territory we make a lot of noise and probably the destruction of the habitat could scare the organisms. The second one was that as the soil was very dry and so on there was lack of species.
Analysis of results
What the pyramids tell?

Evidence

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