In this video Jonathan examines the biology of coral reefs and their importance to the marine ecosystem. Like many other ecosystems on our planet, coral reefs are threatened by human activities. The chemistry of our oceans is being altered by changes to our atmosphere, which put corals and the habitat they create in serious jeopardy. The companion lesson plan looks at the process, the factors involved in, and the effects of ocean acidification on marine organisms; namely those such as corals an…