Scientists have studied patterns of development and differentiation of cells and tissues in a wide variety of species. Which statement describes the role and function of master control genes, or Hox genes, in many species?
A. They often are identical and perform identical functions in different species.
B. They are unique and perform different functions in different species.
C. They exist and function only in humans and a few other species.
D. They exist and function only in insects and a few other species.

Each trait of a plant is determined a. an allele b. one gene c. a pair of genes d. one dominant gene

Cultures of the lake of the ozarks water samples were grown on enrichment media for identification. however, these organisms are present to some degree in all samples. an important question from a clinical perspective is whether or not there is a significant increase in the fecal coliform populations that would put people's health at risk. if you were part of the team investigating this outbreak, how would you best enumerate the fecal coliform threat? view available hint(s) cultures of the lake of the ozarks water samples were grown on enrichment media for identification. however, these organisms are present to some degree in all samples. an important question from a clinical perspective is whether or not there is a significant increase in the fecal coliform populations that would put people's health at risk. if you were part of the team investigating this outbreak, how would you best enumerate the fecal coliform threat? direct microscopic counts filtration count culture serial dilution count culture plate count culture

What is the correct answer for the process of water eroding soil? rills, sheet erosion, gullies sheet erosion, rill, gullies gullies, rills, sheet erosion sheet erosion, gullies, rills