Generally, large birds and seabirds live longer than small birds. Albatrosses live so long that it is hard to calculate their survival rates - they can live longer than the metal rings that identify them, and probably longer than most humans.
Food chain. Definition. A feeding hierarchy in which organisms in an ecosystem are grouped into trophic (nutritional) levels and are shown in a succession to represent the flow of food energy and the feeding relationships between them. Supplement.
A food chain shows how each living thing gets its food. Some animals eat plants \â æ æçææ¤çæ¼çæçå°©, and some animals eat other anim\àµ¡ls \â ææçæ¸æ¤çæ¼çæçå°© others eat both \â ä¼æ´æ¸æ¤çæ¼çæçå°©. For example, a simple food chain links the phytoplankton, zooplankton, small fiså°h, and then big fish. Food chains are linear.