Fundamental similarity due to descent from a common ancestor is called
A. homology.
B. analogy.
C. commonality.
D. convergence.
E. analogy and convergence are correct.
A. homology.
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Which of the following characteristics of protein degradation in eukaryotic cells is not true of protein degradation in bacterial cells?
A. Proteins with an Arg residue at their N-termini have short half-lives. B. Proteins are degraded by a large, barrel-shaped protease. C. Proteolysis is ATP dependent in regulated protein degradation. D. Protein degradation is directed by the covalent attachment of ubiquitin.
What are two types of symbiotic relationships in plant roots?
A. Bacteria in root hairs, fungi in root nodules B. Bacteria in root nodules, fungi in root hairs C. Bacteria in mycorrhizae, fungi in root nodules D. Bacteria in root nodules, fungi in mycorrhizae
After a meal,
a. ATP production slows. b. blood glucose levels remain constant. c. insulin levels rise. d. glycogen is used. e. glucagon levels rise
Individuals with variations that make them best suited to their environment are, on average, more likely to ________
A) evolve B) change over time C) survive and reproduce D) be larger