How is the infection of $Ascaris$ (roundworm) transmitted?

Alcopar is a drug useful for:

What is the length of a female filarial worm?

Which of the following diseases causes internal bleeding,muscular pain,fever,anaemia,and blockage of the intestinal passage?

Match the symptoms of the diseases with their respective causative conditions:
Symptoms of Ascariasis $- P$
Symptoms of Filariasis $- Q$
$I -$ Chronic inflammation of lymphatic vessels
$II -$ Internal bleeding,muscular pain
$III -$ Fever,anemia,and blockage of the intestinal passage
$IV -$ Genital organs are often affected,leading to deformities
$\quad\quad P\quad Q$

Which of the following is a metazoan parasite transmitted through contaminated food or water?