In epilepsy,a seizure is characterized by:

Regulation and coordination by cells = $P$
Regulation and coordination by chemicals = $Q$
Select the correct option for $P$ and $Q$.
$\quad\quad \quad P\quad\quad\quad Q$

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

In humans,if the abducens nerve is damaged,which of the following functions will be affected?

$I.$ The endocrine system provides chemical integration through hormones.
$II.$ The neural system provides an organized network of point-to-point connections for quick coordination.
$III.$ The neural organization is very complex in lower invertebrates.
$IV.$ The human neural system includes $CNS$ and $PNS$.
Select the correct statements.

Melanin and Lewy bodies occur in the neurons in case of