Q: During what in the small intestine do rings of smooth muscle repeatedly contract and then relax? Choices: - mitosis - contraction - compression - segmentation A:
segmentation

Q: When the oval window vibrates, it causes what else to vibrate as well? Choices: - cilia - timpani - hammer and anvil - the cochlea A:
the cochlea

Q: Mammals generally lack a cloaca and have a separate opening for the what? Choices: - urinary tract - tissues tract - physical tract - digestive tract A:
digestive tract

Q: Which important decomposers are known to live just about anywhere on earth? Choices: - protazoas - viruses - sporozoans - archeans A:
archeans