Heart rate reserve is used to calculate
a. training intensity.
b. injury index.
c. workout duration.
d. target heart rate.

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.

Drag the tiles to the correct boxes to complete the pairs. match the academic requirements with the careers.

Calculate alex’s tee. alex has a bmr of 1,300 calories and he exercises lightly. his tee is .