Fill in the blank. The fluidwhich houses the proteins and limits what goes in and out of the cell.

plasma membrane

Explanation:its fluid is of lipid bilayer protein components embedded in it.

option a and d is the correct answer

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volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).