Which actions help prevent groundwater erosion? Select three options. planting bushes preserving trees packing down soil building drains with outlets increasing the slopes of riverbanks

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations

The smallest parts of these that retain their original properties are called