WorksheetsBIO CLEP (3.2-3.4.2)
Total questions: 18
Worksheet time: 15mins
The forelimbs of horses and frogs are considered to be homologous structures. The best evidence for this homology is that the forelimbs have (a)
The greatest diversity of structure and of methods of locomotion is exhibited in the individuals of a
(a)
Evidence that (a) green plants may have evolved from green algae is best supported by the fact that in both (b) a and b are (c) pigments
Which of the following statements best explains the hypothesis that the development of sexual reproduction has resulted in acceleration of the rate of evolution?
Sexual reproduction results in more offspring than does asexual reproduction.
Those members of a species that are best adapted to their environment are most likely to be successful in sexual reproduction.
Mutations usually do not occur in the production of spores or in cells dividing by fission.
Sexual reproduction is more likely to result in genetic recombination than is asexual reproduction
Which of the following pairs of organisms are most closely related?
Mus bufo and Bufo americanus
Lynx lynx and Alces alces
Panthera leo and Felis concolor
Odocoileus virginianus and Colinus virginianus
Canis latrans and Canis lupus
Birds are most closely related to which class?
Amphibians
Bony Fish
Cartilagious fish
Mammals
Reptiles
What class includes whales?
(a)
Members of which class produce milk for their young in specialized skin glands?
Amphibians
Bony Fish
Mammals
Reptiles
What class includes snakes?
(a)
A given trait occurs in two alternative types, M and m, in a population at Hardy-Weinberg equilibrium. If 49 percent of the population has only type M alleles, what percentage of the population is expected to be heterozygous for the trait?
9%
14%
21%
42%
51%
The forelimbs of horses and frogs are considered to be (a) structures. The best evidence for this homology is that the forelimbs have a (b) embryological origin
A population of mice in Hardy-Weinberg equilibrium will exhibit which of the following conditions?
Random mating
Small population size
Immigration
High mutation rate
A new organism is found with the following characteristics:
• A terrestrial lifestyle
• A segmented exoskeleton
• Wings
The new organism is most likely a member of which of the following phyla?
Cnidaria
Porifera
Chordata
Arthropoda
Evolution in action is seen in the case of the English peppered moth (Biston betularia). The proportion of melanic forms in the population, once increasing in areas of heavy soot pollution, is now decreasing. The most probable explanation of this is which of the following?
Differential predation fluctuates randomly.
The birds that ate the dark forms have been killed off by the pollution.
Mutation and back mutation rates have changed
Selection pressure has been reversed because of environmental quality control.
In which of the following ways do social insects benefit most from having several types or castes within the species?
the secretions or odors produced by the protective caste are an effective defense
the division of the species into castes ensures the survival of the fittest
large numbers of the worker caste can migrate to start new colonies
the specialized structure of each caste permits division of labor and greater efficiency
Which of the following statements about imprinting is NOT true?
the capacity for imprinting may be limited to a specific and brief period in the early life of the organism
the behavior pattern associated with imprinting is the result of reward or punishment
the behavior resulting from imprinting is difficult to reverse in later life
a gosling imprinted by a moving wooden decoy may exhibit courting behavior to the decoy in later life
Excess sewage can lead to the death of aquatic animals in a lake because sewage pollution promotes (a)
A katydid is an (a) . Its leaf-like appearance is an example of cryptic (b)
