Answer:
<u>B. Organ</u>
Explanation:
Atom → Cell → Tissue → Organ → Organ System → Organism
Well one way is how hurricane winds and such can blow birds off course. Another is how when trees fall down that forces animals to relocate.
Answer:
It is the varying chemical structure and properties of the R-group that make the amino acids different from one another. About 9 amino acids have non-polar R-groups and are relatively hydrophobic. Another 6 amino acids have strongly polar R-groups which readily attract water molecules.
The answer to the question is A
