When it is cold, shivering causes the muscles to and produce .

When it is cold, shivering causes the muscles to contract and produce heat.

Explanation:

Our body always maintains homeostatic conditions. Homeostasis is to maintain a stable condition inside the body against any changes in the surrounding environment. One of the best example of homeostasis in our body is regulation of normal body temperature. When ever its cold, our body tries to maintain the normal body  temperature by causing the skeletal muscles to shiver. Shivering of skeletal muscle is nothing but vigorous contraction of muscles during which heat is produced. Contraction of muscles is an endergonic process which required energy and produces metabolic heat as a byproduct. This is a negative feed back mechanism in our body. Excess heat due to vigorous or sustained skeletal muscle contraction can heat up the body to such an extent that the other metabolic reactions in our body get affected, which is not good.

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.