Which of the following most accurately
describes mitosis?
a. doubling of cellular material
b. DNA replication
c. separation of membrane-bound organelles
during cell division
d. separation of chromosomes during nuclear
division
e. cell division
D
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The serine pathway and ribulose monophosphate pathway can both be used by ________ as a way to incorporate carbon into biomass
A) acetogens B) anoxygenic hydrocarbon fermenters C) methanogens D) methylotrophs
Girdling a tree is eventually lethal because it prevents
a. water uptake. b. photosynthesis. c. respiration. d. sugar transport to roots. e. water transport to leaves.
The accompanying figure shows the percentage of pairwise genetic comparisons within sample populations of living hominids, graphed against the percentage of sequence divergence for each pair. We can conclude from the figure that ________
A) any randomly selected pair of humans in the world should differ in their mitochondrial DNA sequences by less than 6% B) humans are more genetically diverse than Western chimpanzees C) hominid species do not differ significantly in levels of genetic diversity D) humans share a more recent common ancestor with bonobos than gorillas E) All of the above.
Which of the following statements is FALSE?
a. Digestion of a meal begins in the mouth. b. Hydrolysis of proteins begins in the stomach. c. Most hydrolysis of fats takes place in the stomach. d. Absorption of amino acids takes place in the small intestine. e. Absorption of water takes place in the large intestine.