Genetic drift scientific explanarions are based on empirical data and evidence
Answer: the answer is that it used to be a wetter place
Explanation:
<span>It stores substances such as food, water, and wastes</span>
The bivalve that was a keystone in Iowa, making sure the water stayed clean and filtered, is shellfish.
<h3>What are shellfish?</h3>
Shellfish is a term used to describe the fishes that have exoskeleton and are used to eat.
The shellfish is divided into two groups:
- Crustaceans: shrimp, prawn, lobster, etc
- Molluscan/ bivalves: oysters, clams, mussels, etc.
So, the molluscan are believed to keep the water bodies clean
Thus, the keystone species is shellfish.
Learn more about shellfish
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<span>Ashoka was converted to Buddhism.</span>