The success of human populations resulted from ____
a. their ability to solve ecological problems
b. a stable climate
c. their society
d. their hunting ability
e. absence of predators
ANSWER: a
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A. iris B. pupil C. cornea D. lens
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A. circulatory and respiratory B. nervous and endocrine C. skeletal and muscular D. urinary and integumentary E. reproductive and digestive
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1.Both are examples of incomplete metamorphosis.
2.Only the upper process includes complete metamorphosis.
3.There is no metamorphosis in the upper process.
4.The bottom process is an example of complete metamorphosis.
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A. metal B. wood C. wood that had been hardened in a fire to increase its strength D. stone E. No answer choice is correct.