Only a small percentage of all consumers are specialists. what danger does a specialists face that's generalist does not?

Generalist species are adapt to live in a wider range of environment conditions. Specialist species are adapt to live in a narrow range of environment conditions. Thus, specialists are in a greater danger if some of the conditions in the environment change. For example, species A and B live in a river with an average temperature of 17°C. Species A is the generalist species and it can survive water temperature of 5-35°C. Species B is the specialist species and can survive water temperature of 15-20°C. If the temperature of the river decrease to 10°C, specialist species B will not survive but generalist species a will survive.

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.

The answer is letter c