Day 1 Day 2 Day 3 Day 4 R1 30 40 68 63 R2 47 45 61 81 R3 47 51 69 60 R4 36 38 74 77 R5 53 36 77 60 Dilution factor* 103 104 104 104 Volume plated 100µl 100μ 100μ 100μ Unit: CFU/ml Calculate the mean and standard error for plate count for each day for this control condition. Which day has the lowest and highest standard error?|

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Terrestrial Ecosystem

An ecosystem is a collection of interconnected communities. It includes both living and non-living elements of specific strata. The terrestrial ecosystem is solely related to the ecosystem present on the land and covers 25 to 30% of the total earth’s surface area.