Question 4 of 20: Select the best answer for the question
4. Which of the following is an example of a systemic anatomical study?
A. Studying the organs within close proximity to each other in the abdomen
B. Studying the digestive system from the time food is ingested until it's excreted
C. Studying how a person responds to antidepressant medications
D. Studying the anatomy of the right hand versus thepleft hand in a right-handed person

What is the main structural difference between enveloped and nonenveloped viruses? a) enveloped viruses have their genetic material enclosed by a layer made only of protein.b) nonenveloped viruses have only a phospholipid membrane, while enveloped viruses have two membranes, the other one being a protein capsid.c) enveloped viruses have a phospholipid membrane outside their capsid, whereas nonenveloped viruses do not have a phospholipid membrane.d) both types of viruses have a capsid and phospholipid membrane; but in the nonenveloped virus the genetic material is between these two membranes, while in the enveloped virus the genetic material is inside both membranes.