Vegetarians who rely upon a single type of plant food
A) may become severely dehydrated.
B) run the risk of depleting their liver of glycogen.
C) are soon unable to produce sufficient quantities of bile.
D) may become protein-deficient.
Answer: D
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The three phylogenetic trees shown here all contain the same members and all have a common ancestor, but are divided up in three different ways. Which tree has members circled that are of more than one evolutionary line and does not include the most recent common ancestor of the included lineages? What type of group is this?
A. Tree 1; monophyletic.
B. Tree 2; polyphyletic.
C. Tree 2; paraphyletic.
D. Tree 3; monophyletic.
E. Tree 3; polyphyletic.
Which molecules diffuse into the lymph
vessels during absorption in the small intestine?
a. simple sugars b. triglycerides c. amino acids d. nucleotides e. all of these
Cladistic analysis of populations of blue wildebeest in Africa has helped to show that habitat fragmentation has led to
a loss of ____. a. evolution b. alleles c. genes d. gene flow e. mutations
Thoughts, memories, and the ability to understand begin in the ____
a. cerebral cortex b. hypothalamus c. brain stem d. association areas e. language centers