1. Food Chain/Web: This is the most common interaction. Animals rely on plants for food. This can be direct, like a deer eating leaves, or indirect, like a hawk eating a mouse that ate seeds. The plant provides energy for the animal.
2. Pollination: Some animals, like insects, birds, or bats, act as pollinators. They visit flowers to collect nectar or pollen, and in the process, they transfer pollen between flowers, aiding in plant reproduction. This interaction benefits both the plant and the animal.