QUESTION 1 Which of the following is a synapomorphy of the clade Lissamphibia? O

Question

QUESTION 1 Which of the following is a synapomorphy of the clade Lissamphibia? O Beta keratin O Amniotic egg O Tetrapody O Green rods QUESTION 2 Which of the following is a member of the clade Lissamphibia? O caudata O sauropsida O Aves O Lepidosauria QUESTION 3 The urostyle: O is a specialization for jumping and is found in Caudata. O is made up of fused lower vertebrae and is found in Anurans. O generates powerful vocalizations and is found in Caecilians O supplements cutaneous respiration and is found in Temnospondyls

Explanation / Answer

Question 1: The correct answer is, Green rods.

Explanation: Synapomorphy is a characteristic present in two or more organisms and that is derived from their common ancestor. Green rods are a special type of retinal photoreceptor cells and these cells are present in Salamanders and Anurans.

Question 2: The correct answer is, Caudata.

Explanation: The Lissamphibia represents all modern amphibians. It consists of three living groups and these groups are the Salientia, the Caudata, and the Gymnophiona.  

Question 3: The correct answer is, is made up of fused lower vertebrae and is found in Anurans.

Explanation: A frog is a member of tailless amphibians of the order Anura. The urostyle is found in frogs. It represents a bony structure formed from fused lower vertebrae.

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