HomeCLEP Biology Exam Prep 2026Question 2 of 10
CLEP Biology Exam Prep 2026Question 2 / 10

Given the different habitats in aquatic ecosystems, identify the main groups of algae based on their predominant pigmentation and structure. Algae Type Pigmentation Structure Green Algae Chlorophyll Varied forms, from unicellular to multicellular Red Algae Phycoerythrin Mostly multicellular Brown Algae Fucoxanthin Predominantly large and multicellular

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✓ Correct answer: C. Green Algae = Chlorophyll; Red Algae = Phycoerythrin; Brown Algae = Fucoxanthin Answer: Green Algae = Chlorophyll; Red Algae = Phycoerythrin; Brown Algae = Fucoxanthin Green algae primarily contain chlorophyll, which gives them their characteristic green color. They can be found in various forms, from single-celled organisms to complex multicellular structures. Red algae are predominantly multicellular, and their red pigmentation is due to phycoerythrin, which allows them to photosynthesize in deeper waters. Brown algae, like the well-known kelps, are generally large and multicellular, characterized by their brown color due to the presence of fucoxanthin.

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