T or F a)Quadrula and Radiatula each have glochidia that are unhooked – this must be a result of convergent evolution (e.g. homoplasy). b)The common ancestor of Parreysiinae mussels definitely had 'Unhooked' glochidia. c)Note that Mytilus, Mercenaria, and Neotrigonia are mussels that do not have glochidia larvae - they still have larvae, but they are distinct from the other taxa in this tree. Given this, it is unlikely that the common ancestor of all mussel taxa represented in this tree had glochidia larvae.
T or F a)Quadrula and Radiatula each have glochidia that are unhooked – this must be a result of convergent evolution (e.g. homoplasy). b)The common ancestor of Parreysiinae mussels definitely had 'Unhooked' glochidia. c)Note that Mytilus, Mercenaria, and Neotrigonia are mussels that do not have glochidia larvae - they still have larvae, but they are distinct from the other taxa in this tree. Given this, it is unlikely that the common ancestor of all mussel taxa represented in this tree had glochidia larvae.
Chapter13: Nerves Of Steel
Section: Chapter Questions
Problem 3FITB
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T or F
a)Quadrula and Radiatula each have glochidia that are unhooked – this must be a result of convergent evolution (e.g. homoplasy).
b)The common ancestor of Parreysiinae mussels definitely had 'Unhooked' glochidia.
c)Note that Mytilus, Mercenaria, and Neotrigonia are mussels that do not have glochidia larvae - they still have larvae, but they are distinct from the other taxa in this tree. Given this, it is unlikely that the common ancestor of all mussel taxa represented in this tree had glochidia larvae.
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