During the Precambrian, Earth's first atmosphere is theorized to have been composed of a poisonous mixture of helium and hydrogen gases. When Earth's crust began to cool, the makeup of the atmosphere changed.

Works together in the synthesis, modification, packaging, and transport of lipids and proteins

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

In the first stage of the nuclear fuel cycle the spent fuel must be transported, processed, and disposed of properly. true or false