B because a and c are incorrect and in letter d it states earth has no protection at all. And it DOES have protection B is most definitely true
Answer;
-Nucleotides
Explanation;
-Nucleic acids are polynucleotides, that is, long chainlike molecules composed of a series of nearly identical building blocks called nucleotides. Each nucleotide consists of a nitrogen-containing aromatic base attached to a pentose (five-carbon) sugar, which is in turn attached to a phosphate group.
-A sugar-phosphate backbone joins together nucleotides in a DNA sequence. The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.
The answer is a rod or laser line is inserted into the wound or bullet hole and points to the direction of the shooter.
Im pretty sure the answer is E, Sexual reproduction
srry if im wrong :<
Ignore me please
