Explain why blood type data cannot prove who the father of a baby is, and can only prove who the father is not.

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

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.

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic