The vertebrates' skull made the evolution of intelligence feasible. Indicate whether the statement is true or false
ANS: T
Chordates had many advantages to aid them in growing larger. The skull provided the ample
protection and cavity needed to house the brain, eyes, and other sensory organs. Information can be
found in the section Vertebrate Evolution Traces a Long and Diverse History.
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The minimum concentration factor necessary for profitable mining of an ore deposit depends on each of the following except
A. the metal's average concentration in a deposit. B. the mineral in which the metal of interest occurs. C. how the metal will be used once it is extracted from ore. D. the price of the metal being recovered.
Which expedition was the first devoted solely to marine science?
a. United States Exploring Expedition b. Endeavour expedition c. Challenger expedition d. Resolution expedition e. Discovery expedition
Who was the first to recognize the connection of the moon's position to the tides?
A) Isaac Newton B) Aristotle C) Galileo D) Pytheas
A population in the post-industrial stage would be expected to have ________
A) population size, birth rates, and death rates rising B) a sex ratio skewed in favor of females C) lower birth rates but much higher death rates and environmental impact D) birth and death rates at low stable levels E) an age-distribution diagram that is pyramidal with a broad base