Canines (cuspids) are used to
a. grind food.
b. bite off chunks of food.
c. tear food.
d. mince food.
e. pulverize food.
C
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In a study examining the effects of disturbances and recruitment on the growth of coral in a portion of the Great
Barrier Reef, researchers concluded that changes in the coral colonies are ____.
a. due to external factors only. b. due to internal factors only. Chapter 53 - Population Interactions and Community Ecology Cengage Learning Testing, Powered by Cognero Page 16 c. due to both external and internal factors. d. solely due to human interference. e. not observable after disturbances
Modern humans have lost the system of air sacs that other great apes have. Whatever the reason for this loss, one resulting effect on human behavior was ________
A) restriction of modern humans to low altitudes B) loss of the ability to make loud calls C) improved ability to swallow D) increase in the sizes of Broca's and Wernecke's areas E) the ability to pronounce sounds more clearly
An aerobic cellular process requires carbon dioxide.
a. true b. false
Which of the following organelles modifies and packages for secretion the materials produced by the ribosomes?
A. The chloroplast B. The golgi apparatus C. the nucleus D. the nucleolus E. The mitochondrion