Answer: A) nucleotide
Explanation: I too, am also in biology :)
Answer:
The environment the moths lived in used to be unpolluted. This made dark moths rare. As the area where light moths were found became more polluted, the light moths became less common in the polluted/dark areas. Light Moths began to evolve after not being able to survive in dark forests, they began to get darker and blend in with the polluted area to be safe from predators.
Explanation:
Trophic levels go by,
Producer (The nuts)
Primary Consumer (Squirrels)
Secondary Consumer (Raccoons)
Tertiary Consumer (Bear)
So squirrels would be at a lower trophic level.
Hope his help :)
C binds with G
A binds with T
CAGGTTACG
GTCCAATGC
The answer is A
Identification, communication, regulation of solute exchange through the membrane, and isolation of the cytoplasm from the external environment.