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Question 5 Not yet answered Marked out of 4.00 Flag question A photomenotaxis would describe a behavior in which an animal moves Select one: a by turning toward or away from a light source b. at a fixed angle relative to a light source c. straight toward a source of light d. by changing its rate of turning when it encounters a high light environment e. in an undirected way to search for cues from a light source Previous page

Answer 1

Question 7

Ans) option A

Reason: photomenotaxis is the behaviour in which the organism move away or towards the light source. That is ability of an organism to move directionally in response to a light source. Many cynaobacteria exhibits this behaviour.

Question 6

Ans) option B

Reason:pigeons head was found to contain some traces of haematite (a type of iron ore). So during sunny days there was no disorientation but on cloudy days pigeon was found to be disoriented due to disruption in magnetic field of earth.

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