Dreaming occurs in

The stimuli of hunger,thirst,blood pressure,and body balance are received by the:

$I.Q.$ is the ratio of mental age to

Which of the following systems are involved in the regulation and coordination of the human body?
$I -$ Digestive system
$II -$ Endocrine system
$III -$ Excretory system
$IV -$ Nervous system
$V -$ Reproductive system

The nervous system in vertebrates develops from which of the following germ layers?

In humans,rapid coordination of functional activities is achieved by which of the following?