The Pressure increases with depth
The oxygen concentration levels decreases with depth
There is the action of waves.
There is alternative rise and fall of sea water twice as day, or simply tide action.
Some examples of some threatened habitats are Tundra and The Tropical Rainforest also there is the Temperate Raifforest.
Most sponges are marine, but there are some freshwater varieties
Examples of annelids include earthworms, leeches, and marine worms. These segmented worms typically have a cylindrical body and can be found in various habitats, such as soil, freshwater, and marine environments.
Some examples of marine plants include seaweed, kelp, seagrass, and algae. These plants play important roles in marine ecosystems by providing food and habitat for various marine organisms.
In the phylum cnideria there are three classes. They are hydrozoa, scyphozoa, and anthozoa. In the class hydrozoa, their habitats are fresh and marine water. In scyphozoa, their habitats are marine only. In anthozoa, their habitats are marine only.
in some cactus birds make nests.
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Marine
Sponges are examples of the class Calcarea. They are multicellular aquatic organisms that typically have a calcium carbonate skeleton, giving them a hard and brittle texture. Calcarea sponges are found in various marine habitats worldwide.
Marine habitats are home to seaweeds, algae, sea grasses, and mangroves.
the chemaicals might kill or harm marine organisms.
A marine-based ecozone is a geographic region characterized by its marine ecosystems and the physical factors that influence them, such as ocean currents, salinity levels, and temperature. These ecozones are defined by the marine species and habitats that are present and play a critical role in supporting diverse marine life. Examples of marine-based ecozones include coral reefs, kelp forests, and open ocean environments.