Answer :
Final answer:
The Amazon Rainforest is the ecosystem known for having thousands of species of fish, birds, and mammals. It boasts incredible biodiversity with millions of species documented. Other ecosystems listed do not offer the same level of species diversity.
Explanation:
Which Ecosystem Hosts Thousands of Species?
The ecosystem known for having thousands of species of fish, birds, and mammals is the Amazon Rainforest. This rich and diverse ecosystem is often referred to as the "lungs of the Earth" due to its vast capacity to produce oxygen and store carbon dioxide.
In the Amazon Rainforest, researchers have documented about 2.5 million different insect species, over 40,000 plant species, and at least 2,200 bird and mammal species. Its unique climate, characterized by heavy rainfall and high humidity, supports an incredible array of wildlife, making it one of the most biodiverse places on the planet.
In contrast, the other options presented — the Rocky Mountains, Sahara Desert, and Pantanal Wetlands — have their own distinctive ecosystems and species, but none compare to the sheer diversity found in the Amazon.
Learn more about Ecosystem Diversity here:
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