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Questions and Answers
What type of experiments have shown that elasmobranchs can detect magnetic fields?
What type of experiments have shown that elasmobranchs can detect magnetic fields?
- Magnetic displacement experiments
- Feeding experiments
- Magnetoreception experiments (correct)
- Migration experiments
In the stingray experiment, what occurred when the magnetic field was turned on?
In the stingray experiment, what occurred when the magnetic field was turned on?
- Showed no preference in feeding
- Avoided the magnetic side (correct)
- Feed on both sides equally
- Avoided the control side
What is a possible application of elasmobranchs' sensitivity to magnetic fields mentioned in the text?
What is a possible application of elasmobranchs' sensitivity to magnetic fields mentioned in the text?
- Migration direction alteration
- Enhanced feeding efficiency
- Acoustic communication improvement
- Repelling rays for fishing mortality reduction (correct)
What conclusion can be drawn from the laboratory 'magnetic displacement' experiments with pink salmon?
What conclusion can be drawn from the laboratory 'magnetic displacement' experiments with pink salmon?
How did sharks behave across a 1.5 X 1.5 m2 target in the magnetoreception experiment?
How did sharks behave across a 1.5 X 1.5 m2 target in the magnetoreception experiment?
What did the stingrays do when there was no magnetic field present in the feeding apparatus experiment?
What did the stingrays do when there was no magnetic field present in the feeding apparatus experiment?
What is the purpose of electrolocation in weakly electric fish?
What is the purpose of electrolocation in weakly electric fish?
Which type of fish uses the jamming avoidance response (JAR) to prevent a breakdown in electrocommunication?
Which type of fish uses the jamming avoidance response (JAR) to prevent a breakdown in electrocommunication?
What gene was selected for the production of electric signals and expressed only in electric organs following whole-genome duplication?
What gene was selected for the production of electric signals and expressed only in electric organs following whole-genome duplication?
What type of sequence evolution was observed in the new gene, Scn4aa, related to the origin of electric organs?
What type of sequence evolution was observed in the new gene, Scn4aa, related to the origin of electric organs?
What do mutations of Scn4aa in mormyroids and gymnotiforms result in?
What do mutations of Scn4aa in mormyroids and gymnotiforms result in?
Which species use electric signals for communication according to the text?
Which species use electric signals for communication according to the text?
Which sensory modality allows some fish to detect magnetic fields?
Which sensory modality allows some fish to detect magnetic fields?
Which of the following is not a type of electroreceptor found in fish?
Which of the following is not a type of electroreceptor found in fish?
Which of the following fish species does not produce a strong electric discharge for stunning prey?
Which of the following fish species does not produce a strong electric discharge for stunning prey?
Where are electroreceptors typically located in fish?
Where are electroreceptors typically located in fish?
Which of the following is not a sensory modality used by fish to acquire information from their surroundings?
Which of the following is not a sensory modality used by fish to acquire information from their surroundings?
Which of the following is not a type of electric organ found in fish?
Which of the following is not a type of electric organ found in fish?
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