Question

energy first enters most ecosystems as and is captured by plants during photosynthesis, which converts the energy into sugar.
o sunlight
o kinetic energy
o chemical energy
o heat

Explanation:

Plants use sunlight in photosynthesis to convert it into chemical - energy in the form of sugar. Sunlight is the initial energy source for most ecosystems. Kinetic energy is related to motion, chemical energy is the product of photosynthesis here, and heat is not the primary energy entering ecosystems for photosynthesis.

Answer:

A. sunlight