Given below are two statements: One is labeled Assertion(A) and the other is labeled Reason(R).

Assertion (A): Algae are of paramount importance as primary producers.
Reason (R):They produce energy-rich compounds which form the basis of the food chains of all aquatic animals.

In light of the above statements, choose the correct answer from the options given below.

Assertion (A) is correct because algae are indeed of paramount importance as primary producers in aquatic ecosystems. They play a critical role in converting solar energy into organic matter through photosynthesis. This organic matter includes carbohydrates, proteins, and lipids, which serve as a source of energy and nutrients for various organisms in aquatic food chains and ecosystems.

Reason (R) is also correct. Algae, through photosynthesis, produce energy-rich compounds, such as carbohydrates (e.g., glucose) and other organic molecules. These compounds form the foundation of food chains in aquatic ecosystems. Primary consumers, such as herbivorous zooplankton and small aquatic animals, feed on the algae and assimilate the energy and nutrients stored in these compounds. Subsequently, higher trophic levels, including larger fish, invertebrates, and other aquatic animals, feed on the primary consumers, thus transferring the energy up the food chain.

Both (A) and (R) are true and (R) is the correct explanation of (A)