What are the components of the appendicular skeleton? Which groups lack an appen

Question

What are the components of the appendicular skeleton? Which groups lack an appendicular skeleton? A. B. Distinguish the structural patterns between shark fins and bony fish's lobe fins. C. What were the components of the pectoral girdle in early fishes and how has it changed in tetrapods? Specifically, what is the typical fate of the coracoids and clavicle in the tetrapod girdle? D. What is the function of the pelvic girdle? What are the structural components? What changes have occurred in the evolution of the pelvic girdle of anurans, birds, mammals? E. What structural modification(s) have taken place in the appendicular skeleton to accommodate the transition from the aquatic to the terrestrial environment? Explain how the axial and appendicular skeletal structures participate in locomotion. What limb modifications are associated with cursorality? F. G. Are there structural differences between the pelvises of males and females? What is the main function of fins? What is their general structure? In sharks, what do pectoral fins do? H. J. How does the limb orientation of "advanced" tetrapods differ K. Define and give examples of the following: cursorial, fossorial K. What is plantigrade, digitigrade, unguligrade and which What conditions favored the evolution of the first fins? from that of "primitive" tetrapods? and brachiation. groups exhibit this conditions? How variable are the femurs, tibias, and fibulas of tetrapods?

Explanation / Answer

According to chegg rules we can answer only one question per post.

The components of the appendicular skeleton are:

Urochordata lacks the notochord or the spinal cord.  

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