Classical conditioning such as the salivating of Pavlov's dog in response to a metronome is based on a(n)
A. dishabituation.
B. involuntary response.
C. sign stimulus.
D. operant condition.
E. critical period.
Answer: B
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Some research has indicated that increased exercise is linked to increased telomere length in renewable tissues, like
blood. Assuming that telomerase levels are not increased by exercise, what might explain the increase in telomere length?
a. DNA replication occurred more frequently in individuals who exercised. b. Cell division occurred more rapidly in individuals who exercised. c. Telomerase activity was higher in individuals who exercised. d. Telomerase activity was lower in individuals who exercised. e. Fewer DNA replication errors occurred in individuals who exercised.
The most common spacing is random dispersion
____________________ Indicate whether the statement is true or false.
In a hypothetical situation, a certain species of flea feeds only on pronghorn antelopes. In the western United States, pronghorns and cattle often associate with one another in the same open rangeland
Some of these fleas develop a strong preference for cattle blood and mate only with other fleas that prefer cattle blood. The host mammal can be considered as the fleas' habitat. If this situation persists, and new species evolve, this would be an example of _____. A) sympatric speciation and habitat isolation B) sympatric speciation and temporal isolation C) allopatric speciation and habitat isolation D) allopatric speciation and gametic isolation
Trait SpeciesABCDE101111200111310101401111500001610101The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which species would you designate as the outgroup?
A. 1 B. 4 C. 2 D. 3 E. 5