Two families of feral cats move into the same barn. One family preys on the mice; the other preys on the pigeons. This behavior is an example of
A) resource partitioning.
B) interspecific competition.
C) ecosystem profile.
D) parasitism.
E) mutualism.
A
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An individual who has two different alleles for a trait is called ____________
A. Haploid B. Homozygous C. Heterozygous D. Isozygous E. True-breeding
Research does not indicate a link between the numbers and types of bacteria causing periodontitis and thicker carotid arteries in an individual.
Answer the following statement true (T) or false (F)
Experiments involving nuclear transplantation in amphibians indicate that nuclei derived from blastula are more likely to support development of complete and normal adults compared with those derived from later stages of development
What do these experiments tell us about the process of development?
Figure 44.14
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The following question refers to the age structure diagrams above.
Which statement reflects the age structure of these three countries?
A. India has the greatest proportion of older adults. B. The United States has the greatest proportion of young people. C. India has the greatest proportion of young people. D. China has the greatest proportion of young people. E. China has the greatest proportion of older adults.