The conclusion that early hominids were bipedal is

based in part on examination of
a. their S-shaped backbone.
b. the position of the foramen magnum.
c. footprints.
d. positions of the foramen magnum, S-shaped
backbone and footprints.
e. length of the femur.


Answer: d

Biology & Microbiology

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The first fossilized eukaryotes date to about how many years ago?

a. 3.8 billion b. 6,000 c. 2.1 billion d. 1 million e. 1.8 billion

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Duplicated chromosomes linked together at their

centromeres at the beginning of meiosis are appropriately called what kind of chromatids? a. mother b. daughter c. sister d. homologous e. haploid

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When fats are used as an energy source, the glycerol portion enters ________ when it has been converted to ________

A) the citric acid cycle; pyruvate B) glycolysis; fructose-6-phosphate C) the citric acid cycle; acetyl CoA D) the electron transport system; coenzyme Q E) glycolysis; dihydroxyacetone phosphate

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Alcohol acts as a(n) ___ on the central nervous system.

Fill in the blank(s) with the appropriate word(s).

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