The earliest hominin discovered to date, in a dry lake bed in Chad, belongs to which genus?
a. Homo
b. Ardipithecus
c. Sahelanthropus
d. Australopithecus
e. Aegyptopithecus
c
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Filoviruses (such as Ebola virus) that cause severe hemorrhagic fevers generally have high ________ but low ________
A) incidence / prevalence B) prevalence / mortality C) mortality / morbidity D) morbidity / mortality
Prior to the work of Lyell and Darwin, the prevailing belief was that Earth is _____
A) a few thousand years old, and populations are unchanging B) a few thousand years old, and populations gradually change C) millions of years old, and populations rapidly change D) millions of years old, and populations are unchanging
What type of symbiotic relationship is exemplified by athlete's foot?
A. Mutualism B. Parasitism C. Atavism D. Commensalism
Within a cell undergoing anaerobic metabolism of glucose, fermentation occurs in the
A) stroma of the chloroplast. B) mitochondrial matrix. C) nucleus. D) fluid portion of the cytoplasm. E) phospholipid bilayer of the cell membrane.