Aderives its nutrients and energy from the organic matter of dead organisms, whereas a livesin or on another living organism and derives its nutrients and energy from that living organism.

Explanation:

A saprophyte derives its nutrients and energy form the organic matter of dead organism, wheras a parasite lives in or on another living organism and derives its nutrients and energy from that living organism.

Saprophytes derives their nutrition by feeding on dead and decaying organisms. Most saprophytes are fungus. The energy needed for performing their life functions are sourced from dead organisms. All saprophytes are therefore heterotrophs and consumers in the food chain.

Parasites are organisms that derives their nutrition from their host. They completely depend on their host to provide nourishment for them. Most parasites on the long run harms their host. An example is tapeworm and pig.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.