In which circulatory system do body tissues bathe directly in blood pumped from the heart?
AOpen type
BClosed type
CLymphatic type
DAbsent type
Answer & Solution
Correct answer: A. Open type
In an open system blood leaves the heart and directly bathes the cells and tissues.
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