In a pond ecosystem, consumers can range from microscopic shrimp to large carnivorous fish. Limiting factors in the pond ecosystem can include sunlight, carbon dioxide, nutrients, and space. If the amount of sunlight was reduced, what effect would this likely have on the ecosystem?
a The population of producers would increase.
b The biodiversity in the pond would decrease.
c The number of primary consumers would increase.
d The body size of secondary consumers would decrease.