Explain why only a fraction of energy from the sun that reaches the biosphere is available for use by photosynthetic organisms

option a and d is the correct answer

i hope this u

plz mark as the brainliest answer

lipid

explanation:

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.