C. The Bering Land Bridge once connected what would be Russia and North America but the the movement of these continents separated the land bridge
The levels of organization from cell to biosphere are: cells, tissues,
orgasms and orgasms systems, more orgasms, populations, communities,
ecosystems, ecotones, biomes and biosphere. Hope it helped : )
All living organisms are composed of one or more cells.
The cell is the basic unit of structure and organization in organisms.
Cells arise from pre-existing cells.
I don't know answer, but my answer is the leaf segments, whole communities, and plant dominated aquatic ecosystems and present contemporary methods tailor made to quaintly photosynthesis and carbon fixation underwater.
