Which of the following species is credited with being the first to use stone tools?
a) Homo sapiens
b) Homo erectus
c) Homo habilis
d) Cro-Magnon
e) Australopithecus afarensis
Answer: c) Homo habilis
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A. true B. false
Explain what genetic ‘trick’ could have confounded Mendel is his recognition of segregation? What will be an ideal response?
In commercial food manufacturing, what is the purpose of hydrogenation?
A) to make an unsaturated fat more saturated B) to reduce the amount of "empty calories" in a carbohydrate C) to convert fatty acids into amino acids D) to convert vitamins into minerals
The membranes that line the thoracic and abdominopelvic cavities and most of the internal organs are referred to as _____.
Fill in the blank(s) with the appropriate word(s).