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What key detail should be added to strengthen the student’s paraphrasing of this excerpt? a. dulichium, same, and zacynthus are all visible to ithaca. b. odysseus holds his home very close to his heart. c. the islands surrounding ithaca lie to the east and the south. d. ithaca lies under mount neion and to the northwest. someone

Using mr smith and his id, identify two potential internal validity threats that might affect the a—b design. tell me how that threat might impact conclusions in the a—b design. note #1: you cannot use maturation (since i already did that one for note #2: there are some mr smith id threats that won’t have much impact in a single case design.

Often, a goby fish and a shrimp will live together in a burrow the shrimp has dug in the sand. the shrimp is almost blind and therefore is unable to see predators approaching when he is outside of the burrow. when the shrimp is in danger, the goby fish touches the shrimp with its tail to warn him. then, both go back into their burrow for safety. which type of relationship does this represent? a. mutualism b. parasitism c. commensalism d. predator/prey