Which scientist was a Navy Officer in World War 2 and used sonar on his battleship to map the ocean floor? Harry Hess
Abraham Ortelius
Arthur Holmes
Alfred Wegener

Environmental differences within ecosystems are generally caused by

Suppose a particular species of tulip plant has three alleles for the gene that codes for flower color. the cr allele produces red tulips, the cp allele produces purple tulips, and the cw allele produces white tulips. cr is dominant over cp and cw, and cp is dominant over cw. for each of the following crosses, determine the expected ratio of offspring for each flower color. cr cp x cp cw cr cw x cp cw 1 red: 1 purple : 0 white, 1 red: 2 purple: 1 white, 2 red: 1 purple 1 white, 1 red: 3 purple : 0 white, 2 red: 0 purple : 2 white, 2 red: 2 purple : 0 white

Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f