Your significant other is an amazing chef. When you come home from lecture, the smell of whatever she or he is cooking makes you salivate as soon as you step in the door. Your saliva is being secreted from what type of gland?

In some developing nations the percentage of the animal protein from fish in the diet can be as high as 25 percent.  about 85% of fish caught is used for human consumption.  the remainder is converted into fishmeal and fish oil. 

Gases enter the atmosphere and trap the sun's heat warning the earth.