Hurry up guys it is 10 point explain how extinciton affects biodiversity

Extinction does not occur randomly across an ecosystem, but disproportionately effects similar species that perform similar functions. Meaning that ecosystems rely on particular groups of organisms for particular roles, such as pollination or seed dispersal, the loss of one such group could cause considerable disruption. Extinctions of prey is mainly a concern because without prey other preditors will have no food.

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.