The vast majority of mammals belong to the ____ order
a. Monotremes
b. Marsupials
c. Placental
d. hominids
e. perissodactyls
c
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The center of gravity of a baseball bat is
A. in its center. B. closer to the handle. C. closer to the heavy end. D. slightly away from its center of mass.
Reclamation of strip-mined land is difficult chiefly because
A. nobody can afford it because the minimum reclamation costs about $1000 per acre. B. topsoil is mixed up and buried so topsoil must take time to develop again for plants to grow. C. there is no legal enforcement. D. no plants will grow in the spoil banks because of the heavy load of dangerous chemicals. E. there are no subsidies that exist for mining, unlike other resource-based industries.
Which of the following is true of surface water circulation near Antarctica?
A) A gyre is formed here. B) Two circumpolar currents dominate it, one current that moves water to the east and one current that moves water to the west. C) It is dominated by water flow directly away from the polar region toward the north. D) The surface ocean has no strong currents. E) The circulation of water around the Antarctic continent is driven by density differences.
People can suffer malnourishment if they consume large amounts of ________ instead of ________.
A. Fiber; processed foods B. Proteins and minerals; vitamins C. Vitamins; protein D. Proteins; carbohydrates E. Fat and sugar; vitamins and protein