Symbiotic Relationships
Parasitic
Parasitic relationships occur when two organisms connect, one of the organisms benefits, but the other is harmed by what other organism gains. The symbiotic relationship between the human and the mosquito is parasitic, The mosquito benefits however the human is harmed. The mosquito bites the person and feeds off of their blood, the mosquito is benefited from this because blood is a food source and the mosquito receives nutrients. However the human is harmed because the mosquito has a potential of transmitting bacteria that could be dangerous such as plasmodium or malaria.
(This images represents a parasitic relationship between humans and mosquitos. Mosquitos can harm humans with diseases they carry like malaria,yellow fever and etc. Thus harming the human)
Commensalism
Commensalism is a type of symbiotic relationship where two organisms interact, when they connect one of the organisms benefits from the other however the other organism isn't effected in any way good or bad. The connection between humans and Demodex parasites. Demodex parasites are microscopic mites who live in the skin and hair of humans mostly on the face and especially on the eyebrows and eyelashes. These mites feed on the dead skin of humans and live in their hair follicles which benefits the mite. The human remains unaffected by the presence of the mites living in their hair follicles.
(This images represents a commensalistic relationship between demodex parasites and humans, a common mite found within hair follicles on an individual's face, the demodex normally lives within the eyebrows and doesn't cause harm to humans, humans doesn't benefit from this relationship either)
Mutualism
Mutualism is a relationship between two organisms where both of the in some way or another benefit. The connection of the Bee and The Flower is a classic example of mutualism. The bee goes from flower to flower collecting nectar as food for its colony and to make honey thus benefiting the bee. While gathering nectar the bees pick up pollen on their bodies and carry it out to other flowers where the bees transfer the pollen which fertilizes the plants so they can reproduce thus benefitting the flowers within the ecosystem.
(This image illustrates the classic mutualistic relationship between a bee and a flower. Both organisms benefit from each other; the bee collects nectar from the flower to supply its colony with food and to produce honey while the bee helps the flower in pollination and reproducing)