Questions in diversity-of-life

Select	Question
	The wheel organ is found is
	Which one of the following is a chordata but not a vertebrate
	Larva of Balanoglossus is
	Which of the following is a distinct character
	Vertebral column is derived from
	Common characteristic of all vertebrates without exception is
	Which of the following is the smallest taxonomic group of animals having a cranium, vertebral column, ventral heart, pulmonary respiration and two pairs of limbs
	Petromyzon is
	Ancestors of cyclostomes are
	The petromyzon belongs to