The head of a phospholipid can be described as a-polar and hydrophobic b-hydrophobic with a negative charge c-polar and hydrophilic d-nonpolar and hydrophilic

C-polar and hydrophilic

Explanation:

Phospholipids are the amphipathic molecules and have both polar and non-polar parts in their structure. The phospholipid head is a polar and hydrophilic part which makes the outer part of the bilayer in the cell membrane. The phospholipid tails are non-polar and hydrophobic and are buried in the core of the bilayer to stay away from water.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation:

it is prolly d and c and f