Widow's peak, a pointed hairline on the forehead, is a genetic trait caused by a dominant allele. it can be traced back through a family's history using pedigree analysis. the pedigree shown here is of three generations of a family. notice that some individuals (shown in gray) have a widow's peak (w = dominant allele and w = recessive allele). this pedigree supports the fact that widow's peak is due to a dominant allele, because if it were due to a recessive allele and both parents show the recessive phenotype, then

tissue

explanation:

it is actually formed by geoup of cells which is tissue

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.