The heat generated in response to food ingestion is called satiation dehydration thermogenesis thermolysis

The heat generated in response to food ingestion is called thermogenesis (the production of thermal energy). During the ingestion, the chemical energy stored in the food can be converted to thermal energy because our body produces heat when digesting our food.

For the answer to the question above, the answer is "thermogenesis."

it is a process of heat production in organisms. It occurs in all warm-blooded animals, and also in a few species of thermogenic plants like the Eastern skunk cabbage, the Voodoo Lily, and the giant water lilies of the genus Victoria.

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite   shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.