PLEASE ANSWER ASAP Which of the following is the benefit of a symbiotic relationship?
1. It favors prey over predators.
2. It keeps populations in check.
3. It harms neither of the organisms involved.
4. It is a unique feature of relationships among marine animals.

1.the evidene of the reaction

2.yes

3.yes

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

the sphincter muscles at the end of the digestive tract is the anus.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.