Which is evidence that scientists use to support the big bang theory? a. earth is the only planet with permanent liquid water on its surface. b. most orbits have an elliptical shape. c. most galaxies are moving away from each other. d. the outer planets are mostly composed of hydrogen and helium.

How does natural selection change thephenotypes within a population over time?

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.