A is exhibited only when two are present together. recessive allele

hybrid

purebred

dominant allele

I believe it's a dominant allele

Explanation:

Recessive allele means one is present... A hybrid is the result of two different breeds breeding. A purebred is an organism that always passes down the same genetic makeup.

answer; /// i believe that the correct answer is (50%);

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.