Complete the following sentence. Clarice is a dairy cow that is milked irregularly. Stress may cause her to release a hormone that decreases milk and lowers her immunity.

The correct answer is - production.

Explanation:

If a cow does not milk on schedule it creates stress conditions and leads to several physiological changes which lead to the release of a hormone. This hormone result in lower milk production also affects negatively on her immunity.

The stress cause release of estrogen, and prolactin hormones with other corticosterioids that result in decreases in the number of cytokines and decrease innate immunity of the cow.