The food chain is a group of living organisms linked by food relationships, where one is food for the other. Most often, the chain begins with producers – organisms that synthesize organic substances, mostly plants. In the spruce forest, spruce is the main plant species. One of the spruce forest food chains may look like this: spruce seeds – crossbill – marten – bacteria.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.