The time it requires for exactly one-half of a given amount of a radioactive isotope of an element to decay is called that isotope's
A. decay time.
B. decay product.
C. half-life.
D. half-decay.
E. useful dating range.
C. half-life.
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When primatologists apply principles of animal behavior to humans, they sometimes find instances when morally repugnant behavior may be evolutionarily adaptive. For example, human males are more likely to abuse other mens' infants than they are to abuse their own. This behavior is seen in other mammals as well. How can it be explained in the light of evolutionary adaptations, and how should
society as a whole address it? What will be an ideal response?
During the process of community succession,
according to the traditional view, a. the total biomass remains constant. b. succession culminates in a climax community c. the pioneer community gives way quickly to the climax community, followed by a succession of more diverse arrays of organisms. d. nutrients cycle more rapidly with time. e. all of these occur.
What is the goal of comparative genomic studies?
a) to identify homologues in model organisms for genes involved in human disease b) to study how genomes evolve c) to identify genes that are important for evolution of a particular species d) to study genetic variation within a species or a population e) All of the above are goals of comparative genomic studies.
Compared to adding heat to the system, what is the advantage of using an enzyme to overcome an energy barrier?
A.) an enzyme generates multiple different products using multiple pathways B.) an enzyme speeds up an reaction more than heat does C.) an enzyme is specific for one desired pathway and end product D.) an enzyme can catalyze a reaction in many different ways