This newly identified organism has been discovered to live on our skin
a. reduce pH
b. increase pH
c. no effect
Ans: a. reduce pH
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These form the inner membranes of the mitochondria and are the site for energy production in the electron transport chain.
A) Cristae E) Flagella
B) Electron transport chain F) Plasma membrane
C) Microtubules G) Citric acid cycle
D) Glycolysis H) ATP
Which of the following kinds of fungi are categorized as ascomycetes? Check all that apply.
_____ cup fungi _____ yeasts _____ morels _____ truffles _____ bread mold
Starting from the root of a phylogenetic tree, any node that is shown farther from the root than other nodes, means
A. the two species (or groups of species represented) at the farthest node diverged by sympatric speciation.
B. that only those species at the farthest node, from the root, are in a clade.
C. convergent evolution has selected for the species (or groups of species represented) to be similar.
D. the species (or groups represented) diverged most recently from a common ancestor.
E. the species (or groups of species represented) are in the outgroup.
The proteins of the cell membrane are
a. enzymes. b. channels through the membrane. c. transporters that move substances across the membrane. d. receptors. e. all of these.