Kelp is important because it provides shelter and food for a lot of sea creatures. Algae in the ocean absorbs carbon dioxide and provides much of the Earth's oxygen. Adaptations are many and varied but they are generally grouped into 3 main categories: structural, physiological and behavioural. Marine regions cover about three-fourths of the Earth's surface and include oceans, coral reefs, and estuaries. ... One type of marine algae is kelp. Coralline red algae (Corallinophycidae, Rhodophyta) are important components of marine ecosystems. Coral reefs are some of the most diverse ecosystems in the world. The marine biome. Reef fish and coral off Eniwetok atoll in the central Pacific. Coral polyps, the animals primarily responsible for building reefs, can take many forms: large reef building colonies, graceful flowing fans, and even small, solitary organisms.Thousands of species of corals have been discovered; some live in warm, shallow, tropical seas and others in the cold, dark depths of the ocean. Here’s an interesting fact about the marine biome: algae in the ocean absorb carbon dioxide and produce most of the world’s oxygen! The ocean is a salty place that is often cold. Marine biome biotic factors include bacteria, fungi, algae, plants, and animals. Crustose corallines have been found in … It covers about 70% of the earth. Adaptations in a biome as unique as the Coral Reef,there has to be a way that plants and animals can live there without many issues.Being the biome with one of the highest levels of biodiversity,they have to adapt just as most life has to. Marine algae supply much of the world's oxygen supply and take in a huge amount of atmospheric carbon dioxide. Facts- Both claws are the same length but have different features. ... Food-Sn ails Habitat-Soft rock surfaces with places to hide Adaptation- Crushing knobs and hooks on claws for eating snails. Examples of algae include kelp and phytoplankton. Articulated corallines grow mostly in low intertidal and subtidal coastal areas. Over 90% of the life on Earth lives in the ocean. A variety of organisms that live in marine biomes. Facts About the Marine Biome. Some species of algae are microscopic, unicellular organisms that grow in groups while other types are much bigger, such as seaweed and giant kelp. Marine organisms have adapted to the great diversity of habitats and distinctive environmental conditions in the marine environment. Other ocean plants are seaweeds, sea grasses, and mangroves. Varieties include blue-green algae, green algae, red algae, and brown algae. 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