Q: Cells that undergo cell division continue to have their telomeres shortened, thus telomere shortening is associated with what life process? Choices: - metabolism - reducing - reproduction - aging A:
aging

Q: What is the large muscle that extends across the bottom of the chest below the lungs called? Choices: - uterus - pectoral - abdomen - diaphragm A:
diaphragm

Q: Molecules of gas are rare in what outermost region of the planet's atmosphere? Choices: - ozone layer - thermosphere - ionosphere - exosphere A:
exosphere