What is the difference between topsoil and clay?

The difference between topsoil and garden soil is an even finer distinction than the difference between soil and dirt, and it has to do with the amount of organic matter, and to a lesser extent, the types of trace minerals and the ratio of clay, sand and silt. Garden soil is a category of topsoil

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an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.