In NCERT it is saying that first time organ system is seen in aschelminthes but in video sir is saying first time it is seen in annelida.
Which one is correct??
i want to ask in test ques no 32 ??
in test ques 36 sites of ascaris larva as you taught that first in soil second in intestine then bloodstream and then heart and then lungs and after in trachea but in ques. option as my ans is soil , intestine, lungs but as your answ soil , alveoli, lungs ,how??
in test ques 28 that radula is under mollusca and mollusca has both example loligo and pila but your answer is only pila not loligo ,how??
in test ques 25 crustaceans is under arthropods it respire from all gills , book lungs , bookgiils ,trachea but as your answer is gills , how??