Flatworms are the first animals in the series to reach which level of organisation?
ACellular level
BTissue level
COrgan level
DSystem level
Answer & Solution
Correct answer: C. Organ level
Flatworm tissues are grouped into organs, each specialised for one function, but they lack full organ systems.
Related questions
The excretory organ of hemichordates is theBalanoglossus belongs to which phylum?The body of a hemichordate has an anterior proboscis, a collar and aEchinoderms live in which habitat?Which statement about excretion in echinoderms is correct?In an adult echinoderm the anus lies on theThe most distinctive feature of echinoderms is theAdult echinoderms show radial symmetry, but their larvae are