P → Q → R → S → T. The organism designated P in the food chain above is normally sustained by energy from? by Sunday | May 14 | Biology WAEC | 0 comments A. sunlight B. carbohydrates C. green plants D. mineral salts. Correct Answer: Option A A. sunlight Users Also Read These:The diagram above shows the dentition of an…The organism designated P in the food chain above is…An organism at the start of a food chain which…In an ecosystem, the organism which changes light…The position occupied by an organism in food chain is the?