Examlex
When is/was gravitational contraction an important energy-generation mechanism for the Sun?
Ecosystem
A community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.
Interacting Organisms
Living entities that engage in relationships with one another within an ecosystem, such as competition, predation, symbiosis, and parasitism.
Chemical Factors
Elements and compounds that influence reactions and processes in biological and environmental systems.
Ecosphere
A term often used synonymously with the biosphere, referring to all the ecosystems on Earth where living organisms interact with each other and their physical environment.
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