Gastrovascular cavity of coelenterates performs following functions…….
a) digestion
b) excretion
c) respiration
d) all of the above
Animals found in more than one morphological form are said to exhibit….
a) multigenecity
b) polymorphism
c) pseudomorphism
d) isolation
A flat worm was divided into three pieces during an experiment and was kept in the nutrient medium. All parts grow into new worm. The animals may be….
a) liver fluke
b) planaria
c) tapeworm
d) hydra
Group of vertebrates in which placenta is formed…….
a) fishes
b) amphibia
c) reptilia
d) mammalian
Organs of excretion in annelids are…….
a) flame cells
b) nephridia
c) malpagian tubules
d) kidney
