The fundamental idea behind parsimony is:
a. that the best phylogeny is the one that both explains the observed character data and posits the fewest evolutionary changes.
b. to provide a second approach to inferring phylogenetic relationships.
c. to compute the number of morphological or molecular differences between two or more species or populations.
d. the aim to specifically reconstruct evolutionary trees.
A
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The reduction of the microbial population to levels that are considered safe by public health standards is called
A. sanitization. B. sterilization. C. disinfection. D. antisepsis.
Atmospheric O2 is a waste product of photosynthesis
a. True b. False
Which of the following choices is a feature of mitosis but not meiosis?
a. does not make exact copies of the original cell b. favors crossing over c. produces clones of parent cell d. has two cell divisions
Aquaculture currently can raise all except:
a. shrimp. b. swordfish. c. clams. d. oysters. e. salmon.