Olfactory neurons first transmit their action potential to the central nervous system structure called the
A. cerebellum.
B. amygdala.
C. accessory olfactory bulb.
D. olfactory bulb.
E. cerebral cortex.
D. olfactory bulb.
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When the Catabolite Activator Protein binds to its binding site in DNA, it
A. bends the DNA. B. eliminates the need for a sigma factor on the part of RNA polymerase. C. promotes the assembly of other transcription factors at the promoter. D. displaces repressors.
Industrial melanism is a term
A. describing the color change induced by living in industrialized areas. B. explaining that the darker moths have higher mutation rates because of industrialization. C. describing the evolutionary process in which initially light-colored organisms become dark as a result of natural selection. D. explaining that the darker moths having higher reproductive success because of their pigmentation. E. describing the widespread implementation of pollution controls.
Linnaeus began naming organisms that were alike by using Latin names, he gave each organism two names; for example a wolf is called Canis lupis by scientists. What type of naming system is this and what group does "lupis" designate?
A. Binomial nomenclature; genus. B. Binomial nomenclature; species. C. Zoological nomenclature; genus. D. Zoological nomenclature; species. E. Both binomial and zoological nomenclature; species are correct.
What is the distribution of parental chromosomes in each of the four haploid cells produced by meiosis II?
A) 100% maternal or paternal chromosomes B) a 75%:25% mix of maternal and paternal chromosomes C) a 50%:50% mix of maternal and paternal chromosomes D) a random mix of maternal and paternal chromosomes E) The distribution depends on whether the organism is haploid or diploid.