AP BIOLOGY

Detailed explanation-1: -The large surface area of the plant helps it to absorb as much sunlight as possible which is required for making food for the plant through the process of photosynthesis.

Detailed explanation-2: -Solution : Due to the canopy arrangement, the sunlight cannot reach the lower levels in the forests. Therefore, the leaves for the trees in the lower levels have broad leaves to enable them to absorb all the sunlight that reaches there.

Detailed explanation-3: -The plants that occupy the forest floor are ones that require low light as they are adapted to grow under conditions of low light availability and have large dark green leaves to absorb as much sunlight.

Detailed explanation-4: -The plants that live on the floor of the forest have bigger leaves so that they can absorb the little light that comes through rather the plants that live in hot sunny conditions don’t need to store as much sunlight. Cacti are plants that live in extremely dry environments.

Detailed explanation-5: -Plants growing on the forest floor (understorey) are adapted to lower Sunlight intensity or are shade loving. This is because, the dense canopy does not allow enough light to penetrate through and reach the forest floor.