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.
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The answer is litter carbon dioxide bubbles
I hope that helped
Answer:
Lead is the major pollutants of high-tech gadgets, occupying 40%, while other metals 75%.This is because Pb forms lager components of these gadgets.For example a desktop computer contains about 10 pounds of Pb.
The lead to recycle these material to prevent pollution is important.
Explanation:
a drupe has usually only one seed but berries are characterized as having flesh endocarp and might have more than one seed hope this helps (if this is what u meant) also a drupe is a accessory fruit while a berry is a multiple fruit.
That would be false because they can also be caused by ultraviolet light
