9.(02.03 MC) The coming together of two terrestrial plates can change ecosystems by (4 points)
decreasing the gene pool as different species of animals and plants to interbreed

introducing new species between previously-separated land masses, altering existing food chains

creating new habitats for land animals that fill niches at lower altitudes and warmer temperatures

increasing the area of the shoreline, providing more habitats for marine life that need greater sunlight