Use the following information to answer questions 47 - 50.
Golden algae are a group of protists whose color is due to carotenoid pigments: yellow and brown. Most have two flagella and all are photosynthetic. A group of students was given a significant sample of one of these (Dinobryon) that is colonial. Their instructions for the project were to design two or more experiments that could be done with these organisms.
Since these organisms are protists, which of these characteristics could the students assume to be true?
A) The organisms are photosynthetic.
B) All of them are marine.
C) They are single-celled.
D) They lack membrane-bound organelles.
E) Each has a single circular molecule of DNA.