Identify the Two Main Divisions of the Vertebrate Skeleton and Identify

Q14: To begin the actual contraction, calcium ions

Q15: A major function of keratin is to<br>A)

Q16: Muscles act _ to one another, which

Q17: The main shaft of a long bone

Q18: Figure 40-2 ​<br><img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8678/.jpg" alt="Figure 40-2 ​

Q20: What is a disadvantage of the exoskeleton?<br>A)

Q21: When a motor neuron transmits a message,

Q22: The components of the pectoral girdle are<br>A)

Q23: Figure 40-2 ​<br><img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8678/.jpg" alt="Figure 40-2 ​

Q24: Endoskeletons are shed in the process of