Select all that apply.

what type of things might an overweight person consider when beginning to exercise?
avoid high impact exercises.
exercise for less than ten minutes at a time.
exercise at moderate intensity.
exercise more than once a day.
exercise below your target heart rate.
slowly increase the duration.

What is the main causes of gray hairs and balding? write your answer in 2 paragraphs

Mario was conducting research regarding the treatment of aids victims using stem cells. he found a source that was written recently and the author was known. unfortunately, he could not determine if it had been peer reviewed.

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.