Changes

question="The Jacobson's organ in snakes play a role in...?"

question="The Jacobson's organ in snakes play a role in...?"

choice1="detecting low airborne frequency sound"

choice1="detecting low airborne frequency sound"

choice3="producing and storing venom in some species"

choice3="calcium metabolism"

choice2="propulsion of semen during copulation"

choice2="propulsion of semen during copulation"

choice4="the shedding cycle and growth"

choice4="the shedding cycle and growth"

choice5="vomeronasal chemoreception"

choice5="vomeronasal chemoreception"

correctchoice="5"

correctchoice="5"

feedback1="'''Incorrect''' The columella, an ossicle, extends from the inner ear to the quadrate bone and may detect vibrations from the ground through the jaw. Snakes may be able to detect airborne low frequency sound (150 to 600 Hz) [[Snake Special Senses|WikiVet Article: Snake Special Senses]]."

feedback1="'''Incorrect''' The columella, an ossicle, extends from the inner ear to the quadrate bone and may detect vibrations (low frequency sound between 150 and 600 Hz) from the ground through the jaw [[Snake Special Senses|WikiVet Article: Snake Special Senses]]."

feedback3="'''Incorrect''' The Jacobson's organ, or vomeronasal organ, is a snake 'special sense'. It forms part of the chemosensory system which is analagous to 'taste' [[Snake Special Senses|WikiVet Article: Snake Special Senses]]."

feedback3="'''Incorrect''' The parathyroids play a very important role in calcium metabolism. There are usually two pairs of parathyroid glands which measure about 0.5-1.0 mm in diameter and are located cranial to the heart [[Snake Endocrine System|WikiVet Article: Snake Endocrine System]]."

feedback2="'''Incorrect''' The Jacobson's organ is not associated with the snake reproductive system.  Hemipenes, paired male copulatory organs, may have protuberances that help grip the female and the surface groove (sulcus spermaticus) is involved in the propulsion of semen [[Snake Special Senses|WikiVet Article: Snake Special Senses]]."

feedback2="'''Incorrect''' The Jacobson's organ is not associated with the snake reproductive system.  Hemipenes, paired male copulatory organs, may have protuberances that help grip the female and the surface groove (sulcus spermaticus) is involved in the propulsion of semen [[Snake Special Senses|WikiVet Article: Snake Special Senses]]."

feedback4="'''Incorrect''' The thyroid, which is under pituitary control, appears to play an important role in shedding and growth. Accidental surgical removal of the thyroid may increase shedding, which is the reverse to lizards. In some species it has been reported that thyroid extract administration inhibits moulting [[Snake Endocrine System|WikiVet Article: Snake Endocrine System]]."

feedback4="'''Incorrect''' The thyroid, which is under pituitary control, appears to play an important role in shedding and growth. Accidental surgical removal of the thyroid may increase shedding, which is the reverse to lizards. In some species it has been reported that thyroid extract administration inhibits moulting [[Snake Endocrine System|WikiVet Article: Snake Endocrine System]]."