How was the cretaceous period different from the jurassic period? a. the jurassic period had angiosperms, while the cretaceous did not. b. pangaea split during the jurassic period. c. there were dinosaurs in the jurassic period, which went extinct in the cretaceous period. d. conifers and ferns were present in the jurassic period, but not in the cretaceous period.

Long term exposure to waves can cause sunburns and skin cancer.

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

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above