Natural selection favors what within a predatory rattlesnake? A - The ability to flee
B - Heat-sensing pits by each nostril
C - Scales
D -None of the above

B is correct

Explanation:

Natural selection has to do with natural evolution. B is a characteristic in the rattlesnake that will help it servive and last longer in its environment.

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.