Biotic factor

​You are part of David Attenborough's camera crew from the show Our Planet. Your task is to show the beauty of the biodiversity in coral reefs, but first you need to study the habitats and network of the species you want to photograph.

​Coral reefs are home for many organisms such as sponges, fish including large nurse sharks and reef sharks to groupers, clownfish, eels, snappers, and parrotfish, jellyfish, anemones, crustaceans, other invertebrates and algae. So, how do coral reefs support such a huge weight on their shoulders? It is the symbiotic relationship that is formed when two different species interact with each other. These interactions create a balance within the ecosystem because at least one of the species is gaining from it. Identify the interactions.

Multiple Choice

What is the main abiotic factor that will determine the location of a reef?

• light

• salinity

• depth

• temperature

Multiple Choice

Which term best describes two predators living in the same habitat who feed on the same prey?

• coexistence

• Competition

• Mutualism

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​Now you're ready to dive in!