Gurmeet singh Asked a Question
August 20, 2020 11:47 ampts 30 pts
of calcium.caroonare pecipiiateu iu nature of coiled shells, gastropods possess a quality known as chirality or "handedness." Over_ 90% of gastropods have a dextral or "righthand shell. Left-hand coiled shells are referred to as sinistral. If the opening (aperture) of a shell is on the right side when the shell is held with spire pointing upwards, the shell is said to be dextral. Occasionally, dextral species will produce sinistral shells, and vice-versa. These oddities are highly sought after by shell collectors. cnGcies of arboreal (treedwelling) land snails that show normally mixed coiling.
  • 2 Answer(s)
  • 0 Likes
  • 2 Comments
  • Shares
  • Rahul pandey Best Answer
    Shell coiling is unique for different species and they are found as uniquely coiled either dextral or sinistral in general. However there are some exceptions which are mentioned in...
    Show more
    Likes(0) Reply(4)
    Gurmeet singh
    sir why it happens? and how it happens.
  • Sajan sarthak sahoo thankyou
    I would rather suggest a book . This material is using unusual words and not easy to understand. please study book for more clear . i am even not able to understand this language...
    Show more
    Likes(0) Reply(4)
    Gurmeet singh
    then sir, i ll not b able to achieve my target - each unit per week......how much deepness required for paleontology topics. sir.