Which events contributed to life evolving on Earth? Check all that apply. Organisms began to photosynthesize. The surface cooled, and water condensed. Volcanoes added carbon dioxide to the atmosphere. Ozone formed and blocked ultraviolet rays from the Sun. Comets crashed into Earth, releasing water.

In which layer do organisms on earth love?

In sweet pea, gene c is responsible for color production and gene p is responsible for the purple color pigment. both of them are located on two different loci on different chromosomes. the flowers will be purple only when the plant has the genotypes as c_p_. no color will be produced with genotypes: ccpp, ccpp, ccpp, ccpp. thus, gene c controls the expression of gene p. what pattern of inheritance is exhibited here? a. pleiotropy b. epistasis c. multiple alleles

The disease osteoporosis often results from insufficient intake of dietary calcium salts. of the three samples of bone you tested in exercise 7-2, which is the most similar to the bones in osteoporosis