Answer Happy

Q8 Identifying Alternative Hypotheses 4 4 Points Observation: Large territorial male midshipman fish (Porichthys notatus) "sing" by vibrating their gas-filled swim bladder using specialized muscles. Question: Why do large territorial male midshipmen "sing?" Hypothesis: Large territorial male midshipmen sing because doing so attracts females for mating. Examine the following statements and indicate which are alternatives to the above hypothesis and which are not alternatives Q8.1 Large territorial male midshipmen sing because it repels other males and prevents those other males from fertilizing any of the eggs in their nests. 1 Point Alternative Hypothesis O Non-Alternative Hypothesis Q8.2 Large territorial male midshipmen sing because they have high levels of a testosterone metabolite in their blood. 1 Point O Alternative Hypothesis O Non-Alternative Hypothesis

Q8.3 Large territorial male midshipmen sing because doing so repels predators from the vicinity of their nests. 1 Point Alternative Hypothesis Non-Alternative Hypothesis Q8.4 Large territorial male midshipmen sing because they belong to a group of fish all of whom inherited this ability from a distant common ancestor. 1 Point Alternative Hypothesis O Non-Alternative Hypothesis