A student went to study a local pond. In one part of the pond she noticed tadpoles scraping at some pond weed. In another part, she saw a water beetle holding a tadpole in its jaws. A student went to study a local pond. In one part of the pond she noticed tadpoles scraping at some pond weed. In another part, she saw a water beetle holding a tadpole in its jaws.(a) Construct a food chain for the pond.(b) How many links are there in this chain?