In the article Interspecies transmission of emotional information via chemosignals: from humans to dogs, what are the hypothesis
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Chemical signals of mice. The ability of a mouse to recognize the odor of a potential predator $(\mathrm{e.g} .,$ a cat $)$ is essential to the mouse's survival. The chemical makeup of these odors-called kairomones-was the subject of a study published in Cell (May 14,2010 ). Typically, the sources of these odors are major urinary proteins (Mups). Cells collected from lab mice were exposed to Mups from rodent species A, Mups from rodent species $\mathrm{B}$, and kairomones (from a cat). The accompanying Venn diagram shows the proportion of cells that chemically responded to each of the three odors. (Note: A cell may respond to more than a single odor.) a. What is the probability that a lab mouse responds to all three source odors? b. What is the probability that a lab mouse responds to the kairomone? c. What is the probability that a lab mouse responds to Mups A and Mups B, but not the kairomone?
David Blehert and his research team captured 117 healthy bats to study in the laboratory and divided them into four groups. Group 1 was housed in an area free from Geomyces destructans. Group 2 was housed in an area that shared the same air as bats infected with WNS, but these bats did not have direct contact with the infected bats. Group 3 was housed in direct contact with other bats infected with WNS. Bats in group 4 were directly exposed to Geomyces destructans when researchers applied it to the bats' wings. During the study period, the bats were monitored for signs of WNS. What is the specific hypothesis being tested by the inclusion of group 4 in this experiment? Geomyces destructans causes WNS, and it can be transmitted by direct contact with the fungus; no contact with infected bats is needed for transmission of the fungus. Geomyces destructans causes WNS, and it can be transmitted through the air. Group 4 is the control. Geomyces destructans causes WNS, and it is only transmitted by direct contact with other infected bats.
Dominador T.
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