Question

Describe relationship between the Earth ́s movement and the behavior of the first living things (cells) on the Earth.

Answer 1

Respuesta:

Explicación:Scientists estimate that there are between five to fifty million species of organisms on Earth, of which less than two million have been officially named (May 1988). Many organisms are small: including microbes that inhabit almost every crevice of the Earth; tiny worms that help build soils; and insects that spend their entire lives in tree tops. Alongside these small denizens coexist larger, flashier species that have drawn human attention throughout the ages: multicellular plants and fungi, birds, reptiles, amphibians, and fellow mammals. These species, as well as many smaller ones, are consumers that depend for sustenance on energetic biochemical compounds generated from light energy by photosynthesizing producer species, or from inorganic chemical reactions by chemosynthetic species.

The diversity of producer species, on which all life depends, is immense, and ranges from cyanobacteria to towering trees in tropical and temperate rainforests. Plant life clothes much of Earth’s land surface, providing structure to ecosystems (e.g., interacting systems of organisms and their physical environment), habitat for consumers, and regulating the exchange of energy and chemicals with the atmosphere. Nutrients from terrestrial systems wash into lakes and oceans, where additional primary production by phytoplankton and algae helps support large communities of zooplankton, fish, sea mammals, and birds. Over time, nutrients are returned from the oceans to the land through the movements of organisms, atmospheric gaseous exchange, or slower geological processes, such as the uplift of ocean sediments (Schlesinger 1997).