It differs from DNA chemically in two respects: (1) the nucleotides in RNAare ribonucleotides—that is, they contain the sugar ribose (hence the name ribonucleic acid) rather than deoxyribose; (2) although, like DNA,RNA contains the bases adenine (A), guanine (G), and cytosine (C), it contains the base uracil (U) .
Answer:
The answer is likely population or community
Explanation:
the reason that it is not an ecosystem is because an ecosystem is more than just than group of animals itself it also includes the water and things growing underneath it. The reason that it is not an individual is because there is more than one there (a group).
Answer:
Hmm.
Explanation:
<em>'Many geologists believe that as the Earth cooled the heavier, denser materials sank to the center and the lighter materials rose to the top. Because of this, the crust is made of the lightest materials (rock- basalts and granites) and the core consists of heavy metals (nickel and iron).'</em>