Melanin and Lewy bodies occur in the neurons in case of

You are watching a horror movie and notice that your heart rate increases and your mouth becomes dry. What is the reason for this?

You are watching a horror movie and you notice that your heart is beating fast and mouth is dry. This is due to:

Which of the following functions is affected when the $abducens$ nerve is injured in humans?

Read the following statements:
$(A)$ The neural system provides an organized network for point-to-point connections.
$(B)$ The endocrine system provides chemical integration through hormones.
$(C)$ The neural system is very simple in lower invertebrates.
$(D)$ Neurons can detect and receive stimuli but cannot conduct them.
How many of the above statements are incorrect?

In the eye of an insect,a mosaic image is formed in .........