Answer:B. Protista eggs and sperm
Explanation: helminths are parasitic worms that inhabits the intestinal tract of humans; they live within the host and have attachment organs which enable them to reside within their host; examples include: roundworms (Nematodes), tapeworms ( Cestodes) and flukes( Trematodes)
They are able to obtain enough oxygen because <span>they have more efficient lungs than other vertebrates.
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They are called decomposers.
It's actually a Hox gene, but I suppose a home gene will do just the same.
