I missed a few quiz questions and was wondering what right a

I missed a few quiz questions and was wondering what right answers are! I placed my incorrect answer below.

1. A receptor potential is NOT:

A. generated in sensory receptor cells

B. usually a depolarization

C. always suprathreshold

D. a graded potential

*D was incorrect

2. Which of the following types of intercellular chemical communication are most functionally similar to each other?

A. paracrine and neural

B. paracrine and neuroendocrine

C. autocrine and endocrine

D. endocrine and exocrine

*D was incorrect

3. Sense organs:

A. Contain clusters of similar receptor cells

B. are found only on the body surface

C. contain cells to respond to diverse types of sensory info

D. contain only neurons

E. all of the above pertain to sense organs

*E was incorrect

6. Which of the following IS NOT true of the autonomic nervous system?

A. it consists of autonomic ganglia, preganglionic neurons and post ganglionic neurons

B.both divisions can innervate (synapse on) the same target tissue

C.both divisions release the same neurotransmitter at the synapses with effector cells

D.information to and from the nervous system is carried along cranial and spinal nerves

*B was incorrect

Solution

1 a receptor potential is produced in the sensory transduction, usually a depolarizing event occurs which results from the inward current flow. it is a type of graded potential. hence a receptor potential is not always suprathreshold.

2.