All of the following would be considered symptoms (rather than signs) except:
a. cough
b. sensitivity to light
c. hot flashes
d. acidosis

C. Acidosis

Explanation:

A symptom is a version of the manifestation of a sickness given by the patient. It can vary from patient to patient and is subjective. The signs come from the examination of the patient and are objective and measurable throughout a system of units ( C, mm Hg, other). Acidosis is a sign because it requires laboratory tests.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.