It is recommended that adults should get at least 150 minutes of moderate-intensity physical activity each week. they should also do strength-training exercises. what is the minimum number of days that adults should do strength-training exercises each week?

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.

How does stress affect the digestive system? o a. reduces ability to break down foods b. reduces acid production to slow digestion o c. increases desire for fruits and vegetables o d. increases ability to break down food submit

Losing or fewer per week is a healthy rate of weight loss.