Using the figure above and write down with a corresponding alphabet for 1) to 3). 1) Identify the structure that is the unit of contraction. [C] 2) Identify the structure that involves troponin and tropomyosin proteins. [D] 3) Identify the structure that has heads to attach to the thin filament. [B] 4) Write the name of the ions that are required to form a cross-bridge formation between the two filaments. [calcium]

Which one of the following statements is TRUE regarding Schwann cells? 

We’ve talked about homeostasis in class with multiple examples. 1) What are the four components of homeostasis? List them down here and explain what each means.  2) Choose your example (except thermoregulation) and explain what it is and how it works in our body. 

1) Identify the structure that is related to the sense of vision. [B] 2) Identify the structure that is related to the sense of smell. [A]  3) Identify the structure that controls the spinal reflex. [D] 4) The sheep’s brain is covered with this tough tissue, with 3 layers to protect the brain.      What is the name of this connective tissue layer in general? [Meninges]  

Which one of the following statements correctly describes the spinal reflex with each step? Select ALL that apply.

The liver removes excess glucose from the blood and converts it into ________.

Which one of the following statements is TRUE regarding bone? Select All that apply.

All of the following teeth are found in adult vertebrates except

Which molecule is not able to be absorbed across the stomach wall?

A cross bridge is the binding of which two proteins?