Which of the following statements is true?

1.Cooling magma is slowing adding land to the continents.
2.Convection currents in the mantle keep crustal plates moving.
3.The oceanic plate is made mostly of granite and limestone.
4.The theory of continental drift was immediately accepted by the scientific community.

What is the difference between sex-linked traits and autosomal traits in humans? a. sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex. b. sex-linked traits are passed on through the x and y chromosomes, while autosomal traits are passed on through the other 22 chromosomes. c. sex-linked traits only affect females, while autosomal traits affect both males and females. d. sex-linked traits refer to genes that are on the x and y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?

Is there any solid scientific evidence that humans have been cloned?