As cattle, horses, and other livestock graze in a field, their movements stir up various insects. As the insects are stirred up, egrets follow the livestock to catch and eat the insects, leaving the livestock unaffected. Which of the following best describes the relationship between the egrets and the livestock? Parasitism
Commensalism
Competition
Mutualism

Commensalism

Explanation:

Commensalism means that two species interact; one of them benefits from the other while that other one is neither benefited nor harmed. This explains the relationship between the livestock and egrets.

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primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs