Moths that can evade a bat's echolocation have ________ that increase their likelihood of survival and reproduction.

A. mutations
B. adaptations
C. fitness
D. selection
E. genes


Answer: B

Biology & Microbiology

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What is the best way to describe our current understanding of the one-gene/one-polypeptide hypothesis? 

A.  It continues to be an accurate description of how genes work. B.  It is oversimplified, especially in eukaryotes. C.  It has been replaced by the more accurate “one-gene/one-enzyme” hypothesis. D.  It was true for fungi like Neurospora, but not for other species.

Biology & Microbiology

The streptomycetes form spores on their substrate mycelia.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The graphical representation of the combined weight of organisms at each trophic level is a(n) ____

a. Punnett square b. energy flow chart c. energy pyramid d. ecological pyramid e. biomass pyramid

Biology & Microbiology

Groups of flowers tightly clustered together are called an

a. floret b. ament c. catkin d. inflorescence e. telament

Biology & Microbiology