Q: Q: Name the most famous satellite of the earth? Choices: - demos - skylab - sputnik - the moon A:
A: the moon

Q: Q: Is the digestive tract of many sharks longer or shorter than many other vertebrates? Choices: - heavier - longer - narrower - shorter A:
A: shorter

Q: Q: What is the process in which organisms reproduce sexually by joining gametes called? Choices: - propagation - migration - stimulation - fertilization A:
A: fertilization

Q: Q: Unlike theories, which are proved true, what are often falsified? Choices: - conclusions - samples - controls - hypotheses A:
A: hypotheses