Answer:
Answer is A. A food web does not represent all the links in the actual ecosystem.
Explanation:
A food web is a naturally interconnection of food chains. This means that, a food web consists of more than one food chain. Just like the food chain, the food web comprises of the same groups of organisms, that is, the producer, consumer and decomposed, but in large numbers or quantities.
A complete food web diagram is expected to have Sun as the source of light for a situation where plants are the producers.