2. Corals are related to other commonly found marine animals. What other animals are found in the phylum Cnidaria?
a. polyps
b. jellyfish
C. zooxanthellae
d. they are not related to other marine animals.

Icant see the pictures 

Anions are negative charged ions

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.

Rate law for this reaction israte of the reaction = k[a]²[b].second order in a  means concentration of a in power of two, and  first order in b means concentration of b in power of one.