Food chain is not something basic or simple, maybe only as a a very abstract concept, because our lives and of other species depend on it and this makes it very

Food chain is not something basic or simple, maybe only as a a very abstract concept, because our lives and of other species depend on it and this makes it very important and should be treated carefully. For example another insect that might seem not important to the food chain, the bee, is crucial for agriculture and for our food. If you don't understand the domino effect part you should study a little bit about birds, reptiles and other species that feed on mosquitoes and then you can look higher in the chain on what other animals feed on that birds and reptiles and you will understand how many species will be affected. Scientists unfortunately can't predict effects in very complex systems, not even the most complex computers can simulate something that looks very simple like the weather, this is why we can never predict it accurately and for long periods of time even if we have a lot of data. As I said effects on complex systems can't be predicted by scientists, maybe only in a very limited superficial way, if this weren't true we wouldn't have fukushima, cernobal, oil spills, plastic island in the ocean, increased ocean acidity etc, scientists would have everything in control. Science is cool and is a marvelous tool for knowledge but don't underestimate it's limitations.