Most biologists believe that -there are more commensal relationships than we think -there are no true parasitic relationships in nature -animals are probably harmed or by commensalism in subtle ways - animals most likely benefit from parasitic relationships in unknown ways

The right answer is C.

Classically positive interactions or facilitators between species are divided into two broad categories:

- those where the two partners involved benefit from each other: the mutualisms (symbolized by + / +)

- those where one of the two partners makes a profit or an advantage while the other gets nothing from it without being affected negatively: it is the commensalism symbolized by + / 0.

It may be that bacterial commensalism has an interest in its host (the animal) in the sense that it protects against parasites, or on the contrary, it favors their appearance.

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explanation:

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transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.