How do living organisms interact in ecosystems?

• A. They interact in many ways, including food, shelter, pollination, and decomposition.
• B. They live independently with no interactions.
• C. Only competition determines their relationships.
• D. They rely on each other for energy.

Answer: (A)

Living things in ecosystems interact in many ways that help them meet basic needs like food, shelter, and reproduction. These interactions form a network: plants capture energy from the sun and become food for animals; animals may use habitats that shelter others or provide protection; pollinators move pollen from one flower to another, helping plants produce seeds; and decomposers break down dead organisms and recycle nutrients back into the soil so plants can grow again. This interdependence shows how energy flows through the system and how organisms rely on each other and their environment to survive. While competition and other relationships exist, the idea that ecosystems are built on multiple, interconnected interactions best explains how living things work together.