Sponges are ideal habitats for marine animals, because they have an irregular shape and many are large. Their mutual beneficial relationships with bacteria, algae, and plant like protist are important to sponges. Many sponges are colored green because these organisms are living in their tissues. These organisms gen to sponge and sponge provides protection for them. Sponges that contain photosynthetic organisms play an important role in the ecology of coral reefs because of this relationship. They get enough light to carry out photosynthesis by their spicules acting as a magnifying glass. This adaptation is important, because it allows sponges to survive in different environments and habitats.
Ecology of Corals Light is necessary to corals because it captures nutrients and calcium. Coral Reefs are suffering from human activity such as recreational divers sometimes damage coral reefs. Chemical fertilizers, insecticides, and industrial pollutants poison coral. Coral bleaching has been common in coral reefs. High temperatures kill algae leaving transparent call atop ghostly white skeletons. Global warming maybe a cause to endangering coral reefs around the world.