Bacteria and fungi are indispensable in the material cycle of ecosystems because________
A. It is an important link in the food chain
B. Can decompose organic matter into the inorganic matter and return it to the inorganic environment
C. Very close relationship with humans
D. relationship with producers and consumers
Answer:B
Bacteria and fungi are indispensable in the material cycle of ecosystems because________
A. It is an important link in the food chain B. Can decompose organic matter into the inorganic matter and return it to the inorganic environment C. Very close relationship with humans D. relationship with producers and consumers