Answer:
d. consumers, heterotrophs
Explanation:
Bacteria that change nitrogen gas from the atmosphere into solid nitrogen usable by plants are called nitrogen-fixing bacteria. These bacteria are found both in the soil and in symbiotic relationships with plants.
It is supported by evidence from a wide variety of scientific disciplines, including genetics, which shows that different species have similarities in their DNA. There is also evidence supporting the Theory of Evolution in paleontology and geology.
A food web shows multiple pathways of energy flow through the ecosystem
Ergocalciferol is the form of vitamin d found in plants.