A. <span>A flatworm doesn't have a coelom
Flatworms and other invertebrates belong to a specific group called </span><span>acoelomate, wherein they lack a coelom and has an internal cavity which serves as their digestive cavity.</span>
there would be no ecosystem
Answer:
(Cystoplasm) and (Ribosomes) are common in most living cells
Explanation:
I only have one reason but hope it helps!
Because without those bases pairing there <span>would be no structure of a DNA.</span>
Animals that use echolocation. Bats, whales, dolphins, a few birds like the nocturnal oilbird and some swiftlets, some shrews and the similar tenrec from Madagascar are all known to echolocate.