Flatworm<span>, also called platyhelminth, any of the phylum Platyhelminthes, a group of soft-bodied, usually much flattened invertebrates. A number of </span>flatworm<span> species are free-living, but about 80 percent of all </span>flatworms<span> are parasitic—i.e., living on or in another organism and securing nourishment from it.</span>
I'm pretty sure they are called autosomes
That would be the Sea Lampreys
A.Lampreys
Answer: 2.5-3.o grams per body weight
Explanation:
