I Think The answer is a I hope it helps ya
The answer is the 1st statement.
Have flat bases and are often described as "puffy", "cotton-like" or "fluffy" in appearance.
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D. Sedimantory, metamorphic
If it was wrong I’m very sorry
In comparison they both show feeding relationship in an ecosystem.
In contrast, a food chain is a simple linear feeding relationship while a food web is a complex feeding relationship.
2) The arrows is to show the direction of the feeding relationship