Physics 1603 Exam Chapter 3 Review Questions and Answers 2023

Which of the following processes provides the strongest support for "genetic programming" as important in biological aging? A. Telomere shortening with each cell duplication, until the cell no longer duplicates B. Release of free radicals, which damage cellular material, including DNA C. Damage to DNA through spontaneous or externally caused mutations D. Cross-linkage of fibers that make up the body's connective tissue. - -A. Telomere shortening with each cell duplication, until the cell no longer duplicates -Which of the following are risk factors for cardiovascular disease, a leading cause of death throughout adulthood? A. Weak hand-grip muscle strength, low bone density B. Increased telomerase activity, elevated free radical activity C. Moderate alcohol consumption, low GH level D. Cigarette smoking, overweight and obesity - -D. Cigarette smoking, overweight and obesity -Research on master runners reveals that as long as practice continues, running speed drops only slightly with age until the decade of the ____, when it falls off at an accelerating pace. A. Sixties B. Thirties C. Forties D. fifties - -A. Sixties -First births to women in their thirties have increased greatly over the past three decades because many _____. A. Delay childbearing until the reproductive system is fully mature B. Wait until the risk of miscarriage and chromosomal disorders is low C. Want to reduce their likelihood of having twins and triplets D. Delay childbearing until their vocational lives are well-established - -D. Delay childbearing until their vocational lives are well-established -Consequences experienced by overweight and obese adults