Answer: The phosphate group is the negatively-charged polar head, which is hydrophilic. The fatty acid chains are the uncharged, nonpolar tails, which are hydrophobic. Since the heads are hydrophilic, they face outward and are attracted to the intracellular and extracellular fluid.
Might want to post the whole question and answer
I think the answer is
B) hybrid
Because the genotype is heterozygous
If you mean the dark side of photosynthesis: Dark reactions make use of these organic energy molecules (ATP and NADPH). This reaction cycle is also called Calvin Benison Cycle, and it occurs in the stroma. ATP provides the energy while NADPH provides the electrons required to fix the CO2 (carbon dioxide) into carbohydrates.
