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

  • A
    Chronological age multiplied by ten
  • B
    Chronological age plus ten
  • C
    Chronological age plus $100$
  • D
    Chronological age multiplied by $100$

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In Hydra,neural organization is comprised of:

Dreaming occurs in

$A-$ Humans can sense changes in the environment.
$R-$ Sensory organs detect all types of changes in environment.

The nerve cells,brain,and spinal cord or central nervous system develop from which embryonic layer?

If a child of $10$ years has the intelligence of a $14$ years old child,the $I.Q.$ of this child would be:

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