Which motion allows an observer on Earth to view different constellations throughout the year?
A Earth orbiting the Sun
В. constellations orbiting Earth
C. Earth orbiting the constellations
D. constellations orbiting the Sun

it’s A

Explanation:

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.