1. Cattle egret follow herds of cattle and feed on both the insects stirred by the movement of the cattle and the biting insects that irritate the cattle. This is an example of: parasitism. predator-prey. mutualism. amensalism.

The best answer is : mutualism.

Explanation:

Normally the relationship in between cattle egret and cattle is commensalism, however in this case the symbiosis in these two different species of organism showing is mutualism as both the species are benefited.

Cattle egret gets the food by eating ticks and insects that are present on the body of cattle as well as that are disturbed by the their grazing and stirred by cattle. On other hand, cattle are benefited as they get relief from irritation caused by insects present on their body .

Thus, the correct answer is : mutualism.