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1) A species of Nudibranch can forage on hydras and seaweed. Hydras are more nutritious and offers more energy (E1= 30) but have a handling cost (h1=5) and typically a search cost even if common (s1=1
1) A species of Nudibranch can forage on hydras and seaweed. Hydras are more nutritious and offers more energy (E1= 30) but have a handling cost (h1=5) and typically a search cost even if common (s1=15). Seaweed has a handling cost (h2) of 1 and no search cost (s2), but is not as nutritious as hydras (E2=5). Which organism will the Nudibranch prefer based on optimality?
a. The seaweed because its handling cost is lower than the handling cost of a hydra.
b. The seaweed because it offers a higher net energy (E/h+s) value.
c. The hydra because it offers a higher net energy (E/h+s) value.
d. The seaweed because it has no search time cost.
e. The hydra because it offers a higher energy (E) value.
2) Match the following genes with the behavior associated with their decreased expression of for-R/ fru/ Adf1/ the gene that produces NPF/ For-s:
a) decreased mating success
b) No visible or observed change
c) decreased range of movement
d) decreased ethanol responsiveness and transfer to long-term memory
e) increased ethanol tolerance
3) In a multigenic behavior that shows a range of phenotypic outcomes (quantitative trait), if the trait values range from 0-10, where would be expect the highest frequency? In other words, what trait value would most individuals most likely have?
a. between 2 and 4
b. between 6 and 8
d. between 4 and 6
4) Which focal animal was used as an example of how environmental stress can affect all three features: physiology, morphology and behavior?
a. Grizzly bears modifying their fishing strategy in high flow river or stream environments
b.Wrasse changing from female to male
c. Crows choosing a height to drop their prey from
d. Orcas pack hunting
e. Skinks selecting a foraging location based on the presence of predators.