Answer :
The answer is parasitism. Parasitism, the connection between two types of plants or creatures in which one advantages to the detriment of alternate, now and then without executing the host living being. The flea can gain benefits but the dog may harm the process.
A. Parasitism.This is a type of symbiotic relationship that is regarded as one-sided because the parasite benefits from the relationship but the host is negatively affected. In most cases, the parasite which is often smaller continues to live on or inside the host, obtaining nutrients from the host without necessarily killing it. Apart from nutrients, the parasite also benefits in terms of obtaining a habitat and transport.
