Question

Hookworms and filarial worms both belong to the phylum Aschelminthes (roundworms). Hookworms enter their hosts by ___________________________________________, while filarial worms enter via _____________________________________.

a) Ingestion of contaminated food; penetration through the skin.
b) Direct penetration through the skin; ingestion of contaminated food.
c) Inhalation of larvae; transmission through bodily fluids.
d) Transmission through contaminated water; ingestion of larvae.

Answer 1

Hookworms enter their hosts through skin penetration, and filarial worms are transmitted via mosquito bites.

Step-by-step explanation:

Hookworms and filarial worms both belong to the phylum Aschelminthes (roundworms). Hookworms, such as Necator americanus and Ancylostoma doudenale, enter their hosts by direct penetration through the skin, as the larvae are able to migrate from contaminated soil into the human body typically through the feet. In contrast, filarial worms, which are responsible for diseases like lymphatic filariasis, enter their host via transmission through the bite of an infected mosquito, which acts as an intermediate vector. The larvae are deposited on the skin from the mosquito bite and then enter the body.