Explain what happens to muscles during atrophy. Use complete sentences for full credit. 

A neuron receives a series of stimuli that increases the membrane permeability of Na+, but not enough to cause membrane potential to surpass -55mV. This neuron is said to be__________ because it received a subthreshold stimuli.

Why are athletes typically able to exercise longer before developing muscle fatigue than non-athletes?

After finishing a sprint, Tawanda experiences painful cramps in her calf muscles. A deficit in__________ would explain her cramping.

A long strap like muscle that connects the pubic bones to the ribs and sternum.

The four social institutions that most strongly influence values and culture are schools, churches, families, and the media.

40 is what percent of 200? [a] 65 is what percent of 50? [b] What number is 15% of 80? [c]

Complete the table to show equivalent amounts. For this fraction, do not use the equation editor; just use the slash on the ? button on your keyboard.  Example: one-half should be typed 1/2 Simplify the fraction completely.  fraction decimal percent [a]

Kevin and River are opening competing lemonade stands. Kevin will charge $1.10 for a 8 fl. oz. cup of his lemonade. River will charge $1.50 for a 12 fl. oz. cup of her lemonade. Which one is the better deal? Explain how you know. Include the unit rates you calculated in the explanation. 

Are these proportions equivalent or not? Explain how you know. Include your calculations in your answer.