Where a branching point in a phylogenetic tree is called a _________, it illustrates that _______ has occurred.
A. break; extinction of a species.
B. clade; cladogenesis.
C. node; cladogenesis.
D. node; anagenesis.
E. break; anagenesis.
C. node; cladogenesis.
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How would the presence of endospores in Louis Pasteur's nutrient solutions have affected his conclusions about spontaneous generation?
What will be an ideal response?
Which of the following lipids would you expect to find associated with chloroplast membranes?
A) phosphatidylserine B) glycosphingolipid C) monogalactosyldiacylglycerol D) galactocerebroside E) hopanoids
After fermentation in human cells, lactate is converted to pyruvate in the
A) bone marrow. B) heart. C) muscles. D) lungs. E) bloodstream.
The exocrine function of the pancreas produces:
A) insulin. B) glucagon. C) enzymes. D) somatostatin.