What was the importance of the therapsids? What will be an ideal response?
The therapsids were the most mammal-like reptiles, and they gave rise to the mammals during the
Triassic Period
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Which of the following are reasons why sharks should be considered important to humans?
a. They never get cancer, and may provide information about how to prevent this disease. b. They are an important source of food c. They are a keystone species d. They never get cancer and are an important source of food e. They never get cancer and are a keystone species
Cumulus clouds that appear above isolated mountain peaks are often the result of:
a. katabatic winds. b. mountain winds. c. fall winds. d. Santa Ana winds. e. valley breezes.
Which member of the ecological trilogy grows staple food crops such as wheat and barley that feed the other groups?
a. villager b. pastoral nomad c. urbanite d. yeoman farmer e. serf
Underwater avalanches of muddy water mixed with rocks and debris are ________
A) deep sea fans B) graded bedding C) turbidity currents D) coral deposits E) white smokers