NEET BIOLOGY

Detailed explanation-1: -Competition and predation are ecological relationships but are not symbiotic. Predation does not occur over a long period of time, and competition is an indirect interaction over resources.

Detailed explanation-2: -Competition can happen between members of the same species (intraspecific competition) and between different species (interspecific competition). An example of interspecific competition in the ocean is the relationship between corals and sponges. Sponges are very abundant in coral reefs.

Detailed explanation-3: -Obligate symbiosis is when two organisms are in a symbiotic relationship because they can’t survive without each other. Facultative symbiosis is when the species live together by choice. There are four main types of symbiotic relationships: mutualism, commensalism, parasitism and competition.

Detailed explanation-4: -Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. One species typically uses the other for a purpose other than food. For example, mites attach themselves to larger flying insects to get a “free ride.” Hermit crabs use the shells of dead snails for homes.