Speaking of HIV, an important piece of information in the management of a person infected with HIV is his/her viral “load.” How could PCR give information about the amount of viral particles (viral replication) in a specific person?

Select all the true statements about the cosmic microwave background radiation

How can active reading strategies you? o a. they can you get into better physical shape. o b. they can you read fewer science articles. o c. they can you understand what you read. o d. they can you avoid reading altogether.

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food