Which part of your body controls your growth, sexual development, and some aspects of behavior?
A. endocrine system
B. lymph nodes
C. appendix
D. xiphoid process
Answer: A
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Two-thirds of all mercury reaching the atmosphere every year comes from.
A. volcanoes B. rocks and soil. C. toxicology studies. D. industrial facilities. E. methyl mercury.
Unlike gravitational forces, electric forces include
A. the inverse-square law. B. separation distance. C. infinite range. D. repulsive interactions.
Karl Marx provided the theoretical basis for Malthus' conclusions about population
Indicate whether this statement is true or false.
An earthquake of magnitude 7.0 has an amplitude ____________________ times as large and releases
____________________ times as much energy, respectively, as a magnitude 6.0 earthquake. Fill in the blank(s) with the appropriate word(s).