Moths that can evade a bat's echolocation have _____ that increase their likelihood of survival and reproduction.
A. fitness
B. selection
C. mutations
D. adaptations
E. genes
D. adaptations
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Communication has often evolved through co-opting and modifying behaviors used in another context. For example, the communication advantage to scent markings is to:
A. strategically mark particular locations for eliminating wastes. B. let an intruder know where another individual's territory is so that a costly fight would not ensue. C. advertise to other individuals in order to attract mates. D. All of the answer options are correct. E. None of the answer options is correct.
The limit of resolution can best be defined as
A) the distance that an object must be moved to be distinguished from its background. B) the inverse of the wavelength of light; it is greatest for black light. C) the distance that two objects must be apart to be distinguished as separate objects. D) the solvent that must be available to remix a solution. E) the magnification power of a microscope.
Four of the five ecosystems below are related by the
same type of biome. Select the exception. a. short-grass prairie b. monsoon grassland c. savanna d. chaparral e. tallgrass prairie
Which of the folllowing terms refers to a bacterial cell having a single tuft of flagella at one end?
A. monotrichous B. amphitrichous C. peritrichous D. lophotrichous