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Author Archives: Anonymous

When light hyperpolarizes photoreceptors, what inhibitory ne…

When light hyperpolarizes photoreceptors, what inhibitory neurotransmitter do they stop releasing? 

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Visual pigments are differentiated based on the identity of…

Visual pigments are differentiated based on the identity of what protein? 

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What type of chemical messengers are locally acting and affe…

What type of chemical messengers are locally acting and affect cells other than those which secrete them? 

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The nervous system can adjust or override normal endocrine c…

The nervous system can adjust or override normal endocrine controls, for example when a person is under stress, the hypothalamus and sympathetic division can override the activities of insulin which allows blood glucose levels to increase. 

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The hypothalamus contains  _______ which monitor solute conc…

The hypothalamus contains  _______ which monitor solute concentration within the body. 

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How does light react when passing through a convex lens? 

How does light react when passing through a convex lens? 

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_______ is the key light-absorbing pigment.

_______ is the key light-absorbing pigment.

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What is it called when more than one hormone produces the sa…

What is it called when more than one hormone produces the same effects on a target cell? 

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From the list below, what are the two major neurotransmitter…

From the list below, what are the two major neurotransmitters used in the autonomic nervous system? (choose all that apply) 

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There are two different pathways in which soundwaves can tra…

There are two different pathways in which soundwaves can travel through the inner ear. Sound waves with frequencies below the hearing threshold travel through the helicotrema pathway and exit through the round window, while sound waves within the range of hearing range travel along the basilar membrane pathway. 

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