B) bacteria, are producers
Answer: The given statement is True.
Food chain can be described as the sequence of transfer of energy and matter among different organisms present within an ecosystem.
It starts with producers ( occupying the first trophic level), which are consumed by consumers in a successive manner ( primary consumer→ secondary consumers→ tertiary consumer or decomposers).
Therefore, producers are beginning link in a food chain whereas decomposers occupy the last level in a food chain.
Answer: synthesizing of complex molecules
Explanation:
During the synthesizing of complex substances (catabolism) energy is given off to the body to generate heat within the body
