Author Question: The nitrogenous bases include adenine and _______________ (both purines), as well as thymine and ... (Read 45 times)

luminitza

  • Hero Member
  • *****
  • Posts: 555
The nitrogenous bases include adenine and _______________ (both purines), as well as thymine and _______________.
 Fill in the blank(s) with correct word

Question 2

Describe the anatomy of the pulmonary system.



carolinefletcherr

  • Sr. Member
  • ****
  • Posts: 313
Answer to Question 1

guanine; cytosine

Answer to Question 2

The pulmonary system includes the upper and lower respiratory tracts. The upper respiratory tract includes the nose, nasal cavity, frontal and maxillary sinuses, larynx, and trachea. The lower respiratory tract includes the lungs, bronchi, and alveoli.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

For a complete list of videos, visit our video library