Drag the tiles to the correct boxes to complete the pairs. Match each description to the appropriate biome. tundra tropical rain forest tropical savanna taiga desert has warm temperatures and is dominated by grasses arrowBoth has cold winters, heavy snowfall and is dominated by conifers arrowBoth located near the equator and contains trees that form dense canopy layers arrowBoth has sparse vegetation and very cold temperatures arrowBoth is very hot and dry, and has plants that need little water arrowBoth

the right option is; decreased genetic variation  

decreased genetic variation describes the effect of this environmental change.

genetic variation is the naturally occurring genetic diversities or differences between organisms of the same species in a population. genetic variation allows the survival and adaptability of a species when they encounter changing environmental conditions. when an endangered species reduces, it loses genetic variation which may not be restored even if the species rebound and will only be recovered through the gradual collection of mutations over many years.