Answer:
D
Explanation:
You can immediately eliminate B and C. So between A and D, D is the best answer.
Answer:
An axis is an invisible line about which an object rotates, or spins.
Explanation:
Almost all viruses are so small they cannot be seen without an electron microscope, and they often consist of just a nucleic acid (either DNA or RNA) in a protein capsule.
elemental energy is not a modern source of energy . the other three are . pls mark brainliest
Anti-parallel DNA strands refer to those DNA molecules which contain 2 DNA strands that were held together by hydrogen. In cases that the DNA strands are not anti-parallel the non-symmetrical hydrogen bond will not be possible and will cause some issues.