Explain the difference between food-chain and ecosystem. Explain the difference between food-chain and ecosystem.

A food chain shows the transfer of energy through a single chain of animals. For example, energy comes from the sun, a producer uses energy from the sun as food, a secondary consumer eats the primary consumer, a tertiary consumer eats the secondary consumer, and so on. An ecosystem contains many intertwining and interlocking food chains. Ecosystems contain both abiotic and biotic factors.

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?