Which of the following is true regarding symbiotic relationships?Group of answer choicesSymbioses require a net benefit to the host and the symbiont.Symbionts are required to be smaller in size than the other interacting participant.Symbiosis occurs when two dissimilar organisms living closely together engage in a sustained interaction.Symbiotic relationships only exitst between bacteria and animals.

The correct statement regarding symbiotic relationships is: "Symbiosis occurs when two dissimilar organisms living closely together engage in a sustained interaction."

Explanation:

1. Symbioses do not require a net benefit to both the host and the symbiont. In some symbiotic relationships, one organism (the parasite) benefits at the expense of the other (the host).

2. Symbionts are not required to be smaller in size than the other interacting participant. Size is not a determining factor in symbiotic relationships.

3. Symbiosis does occur when two dissimilar organisms live closely together in a sustained interaction. This can include mutualistic relationships (where both organisms benefit), parasitic relationships (where one organism benefits at the expense of