Why Starfish are Important — Reading Comprehension
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RI.1.1
RI.1.2
RI.1.8
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Starfish play a crucial role in maintaining the delicate balance of marine ecosystems. As key predators, they help control the populations of mussels, clams, and other shellfish, preventing these species from dominating and crowding out other marine life. This regulatory function promotes biodiversity in intertidal and subtidal zones. Some starfish species are vital in protecting coral reefs by preying on coral-eating organisms, thus indirectly supporting the health of these important ecosystems. Starfish also serve as a food source for various marine animals, including certain fish species and seabirds, forming an essential link in oceanic food webs. Additionally, the presence and health of starfish populations often indicate overall ocean health, making them valuable bioindicators for marine scientists and conservationists. The study of starfish contributes significantly to our understanding of marine ecology, adaptation, and the impacts of environmental changes on ocean ecosystems, underscoring their importance in both scientific research and marine conservation efforts.
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Starfish play a big role in the ocean. They help keep the number of other animals in balance. Starfish eat animals like mussels and clams. If there were too many of these, they would crowd out other sea life. Some starfish eat coral-eating animals, which helps protect coral reefs.
Starfish are also food for other animals like big fish and seabirds. Scientists study starfish to learn about ocean health. When there are many healthy starfish, it usually means the ocean is healthy too.
How do starfish help the ocean?
By making wavesBy cleaning the waterBy keeping other animal numbers in balanceBy making oxygen
What might happen if there were no starfish to eat mussels and clams?
The ocean would be cleanerThere would be too many mussels and clamsFish would have more foodCoral reefs would grow faster
How do some starfish help protect coral reefs?
By eating coral-eating animalsBy making shade for the coralBy cleaning the coralBy building new reefs
What can scientists learn from studying starfish?
How to swim betterHow to build boatsAbout ocean healthAbout the weather
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