Capillaries from the small and large intestine converge into the .

capillaries from the small and large intestines converge into veins that lead into the hepatic portal vein.

Explanation:

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).