Q: The arrangement of what plant structures can be classified as either alternate, spiral, or opposite? Choices: - spores - fruits - roots - leaves A:
leaves

Q: What is the most abundant element in the universe? Choices: - oxygen - helium - fluoride - hydrogen A:
hydrogen

Q: What causes cancer cells to avoid elimination and continue to multiply? Choices: - continuous cell division - chronic cell division - persistent cell division - uncontrolled cell division A:
uncontrolled cell division

Q: What is one method to observe nebulae? Choices: - mirror - kaleidoscope - microscope - telescope A:
telescope