Author Question: __________ are chemicals that are released by some species and influence the physiology and behavior ... (Read 79 times)

misspop

  • Hero Member
  • *****
  • Posts: 540
__________ are chemicals that are released by some species and influence the physiology and behavior of conspecifics.
 
  Fill in the blank with the appropriate word.

Question 2

An analgesia circuit descends into the spinal cord from the __________ gray.
 
  Fill in the blank with the appropriate word.



ynlevi

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

Answer: Pheromones

Answer to Question 2

Answer: periaqueductal



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

For a complete list of videos, visit our video library