There are many animals in the ocean ecosystem. Here are some that I remember from the top of my head for right now. They are:
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An ecosystem is a place where plants and animals ( maybe humans ) live and animals and plants live in the desert so … 
There are changes brought up in animals and plants. It is due to evolution.
They are plants, animals, and organisms.
the living parts of an ecosystem is generally called the biotic
Plants, specifically through photosynthesis, are alive and provide oxygen for animals in the ecosystem. This process involves plants absorbing carbon dioxide and releasing oxygen as a byproduct, which animals then utilize for respiration.
Different plants in the ocean play a crucial role in the marine ecosystem by providing food and oxygen for marine animals, regulating the carbon cycle, and maintaining the balance of nutrients in the water. These plants, such as phytoplankton and seaweeds, form the base of the marine food chain and support the overall health and biodiversity of the ocean ecosystem.
An ecosystem is a place where plants and animals ( maybe humans ) live and animals and plants live in the desert so … 
Show a ecosystem diagrams about animals rain forest rivers plants?
plankton
by cooperating
How does what influence animals in the ocean?
So the animals that eat plants can eat plants and won't run out.
There are changes brought up in animals and plants. It is due to evolution.
They are plants, animals, and organisms.
they are biotic because they have a ecosystem
Stuff like animals and plants
an ecosystem