Question

A parasitic way of life can be best demonstrated by the feeding adaptations of the A) earthworm. B) leech. C) shark. D) spider.

Answer 1

B) Leech. Parasitism is when one organism benefits off another while that organism is harmed. Another example of parasitism is a flea on a dog or cat.

Answer 2

Answer:

B) leech

Explanation:

The feeding adaptations of leech best represents parasitic way of life. Leeches are invertebrate animals and the phylum to which they belong is Annelida and their subclass is Hirudinea. Leeches have an anticoagulant named as heparin which they inject in the body of the host on which they feed upon. Heparin does not let the blood of the host coagulate and in this way they keep sucking the blood of host organism. Leeches are parasitic because they get benefited out of the host without benefiting the host by any means.