Which organisms form the base of all ecosystems?
Select one:
a. scavengers
b. producers
consumers
d. decomposers

b. producers

Explanation:

without producers, consumers cannot get the energy they need to survive (also because I said so)

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.