How do all $Platyhelminthes$ differ from $Aschelminthes$?

Annelida and Mollusca resemble in many embryonic features because both have

Identify the incorrect matching.

Which of the following characteristics are $NOT$ common to both Aves (birds) and Mammalia (mammals)?
$I$ - Homeothermic (warm-blooded) animals.
$II$ - Respire through lungs.
$III$ - Possess a four-chambered heart.
$IV$ - Dioecious (sexes are separate).
$V$ - Possess hair on the skin.
$VI$ - Show internal fertilization.
$VII$ - Possess teeth.

These animals are oviparous or ovoviviparous and exhibit internal fertilization.

Identify the categories $P$,$Q$,and $R$ in the given classification chart of Vertebrata.