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12.) Biotic Factor


This is a picture of grass which is a biotic factor. Biotic factors are all living organisms in an ecosystem. This includes plants, animals, bacteria, fungi and more. Biotic factors are put into three groups; autotrophs, heterotrophs, and detritivores. 

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3.) Anther and Filament

This is a picture of a common daylily which shows the anther and filament of a stamen. This is where the pollen of a flower is stored and produced. The anther holds the pollen while the filament, a long stem-like structure, holds the anther up so pollinators can reach it. The anther can either be placed at the end of the filament (as pictured) or towards the center.  
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