Adichotomous key works on the principle of asking yes-or-no questions about the organism. to identify it, the answers for that organism are then compared to existing organisms to identify it. prepare a list of four to five questions about each of the organisms listed below to you create your own key. for each question, make sure the answer isn’t the same for all four organisms. for example, does the organism have cells? would be an inappropriate question, because all the organisms have cells. brewer’s yeast (saccharomyces cerevisiae) e. coli bacteria (escherichia coli) green hydra (hydra viridissima) house cat (felis catus)

it is either c or d and i know for sure it is not a or b

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."