What two grooves extend the length of the spinal cord and partially divide it into right and left halves?

Use the table above to answer the following question. Suppose that an individual has a $5 budget constraint. What combination of itunes videos and itunes songs should a rational utility maximizing individual consume?  

In a supply and demand model, excise taxes on goods and services cause deadweight loss because:

Which part of the brain is related to equilibrium and coordinated movements?  

Suppose that between 1995 and 2013, U.S. external debt rose from 8 percent of GDP to over 29 percent of GDP. This increase in external debt owed to foreign entities:

If an aggregate demand curve has a multiplier effect than it is:

The  blood–brain barrier allows the passage of water, some gases, and lipophylic molecules by passive diffusion, as well as the selective transport of molecules such as glucose and amino acids that are crucial to neural function. It is a highly selective semipermeable border that separates the circulating blood from the brain and extracellular fluid in the central nervous system. The blood–brain barrier is formed by endothelial cells of the capillary wall and ………………………….end-feet.  

_____________________ is a company or organization’s exclusive control over a product, commodity, or service. 

Macula lutea is located in the —————————– of retina, and has —————–photoreceptors, which produce high-resolution color vision.

Which brain area controls hunger, thirst, temperature regulation and endocrine system? (Hint: It is also an especially important center of autonomic control).