Which of these would be the most effective at destroying giardia, a protozoan that infects the intestinal tract?

The right answer is an antiparasitic drug (like metronidazole).

Giardiasis is an intestinal infection caused by Giardia lamblia, a microscopic unicellular parasite.

The parasite that causes giardiasis is lodged in the intestines of humans and infected animals.

In some cases, giardiasis disappears spontaneously in about 1 month. Other people need to take antiparasitic drugs (eg, metronidazole) to shorten the duration of the infection and kill the parasite.

homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.