Answer:
round worms reproduce sexually
the nervous system of a roundworm contains a brain and nerve cords
Fragmentation is the breaking of the body into parts and then the organism develops all the parts of the body. The fragmentation is the type of reproduction in lower organisms. The fragments which are produced can develop into new organisms.
Ying and yang is the answer to the question
The present system of binomial nomenclature<span> identifies each species by a scientific name of </span>two<span> words, Latin in form and usually derived from Greek or Latin roots. The first name (capitalized) is the genus of the organism, the second (not capitalized) is its species.</span>
The hard plate is the answer i found when looking it up. hope this helps.