« previous next »

Author Question: Emerging viruses arise by A) mutation of existing viruses. B) the spread of exis (Read 808 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
on: Jul 2, 2013
Emerging viruses arise by
A) mutation of existing viruses.
B) the spread of existing viruses to new host species.
C) the spread of existing viruses more widely within their host species.
D) mutation of existing viruses, the spread of existing viruses to new host species, and the spread of existing viruses more widely within their host species.


ricki

  • Full Member
  • ***
  • Posts: 200
Reply #1 on: Jul 2, 2013
Hey dude, go with D. I got it right.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

geoffrey

  • Hero Member
  • *****
  • Posts: 880
Reply #2 on: Jul 14, 2013
Thanks sir, correct as always


« previous next »
 

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t
The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha
Paranasal sinuses are part of the upper respiratory system. From here, infections may spread via the ... Paranasal sinuses are part of the upper respiratory system. From here, infections may spread via the ...
A culex tarsalis mosquito, a common vector of the spread of West Nile virus. A culex tarsalis mosquito, a common vector of the spread of West Nile virus.
Create a soapy lather with the hands and spread the soap up to the elbows. Liquid soap is preferred. ... Create a soapy lather with the hands and spread the soap up to the elbows. Liquid soap is preferred. ...
Human Viruses Associated with Cancers Virus Human Viruses Associated with Cancers Virus
Video: Cardiac Cycle (Part 4 of 4)

For a complete list of videos, visit our video library