Multiple choice Chlorophyll a, Chlorophyll d, phycocyanin and phycoerthrin are characteristics of: Phaeophyceae Rhodophyceae Chlorophyceae Bacillariophyceae Reveal answer Fill a bubble to check yourself B Correct answer Explanation Rhodophyceae is a class of marine multicellular algae. They consist of chlorophyll a, d, phycocyanin and phycoerthrin.