生命活动需要能量与物质。一般来说,生物界只有植物具有直接利用太阳能、从环境中吸收无机物质——二氧化碳和水合成为有机物质的能力。其他生物直接依赖于植物光合作用的产物,进行自己的生命活功。也就是说,生物和环境之间、生物与生物之间,有一定的相互依存和制约关系,即生态。生态系统 Life activity requires energy and matter. In general, only plants in the biosphere have the ability to directly utilize solar energy to absorb inorganic substances from the environment - carbon dioxide and hydration into organic matter. Other creatures are directly dependent on the photosynthetic products of plants for their own life. In other words, there are certain interdependencies and constraints between living things and the environment and between living things and living things, that is, ecology. ecosystem