What statement is best supported by the survivorship curves? A. American robins have a high survival rate for most of their lifespan and then decline rapidly in old age.

B. American robins have similar death rates throughout their lifespan, while the death rate of common green darners changes over their lifespan.

C. A very high proportion of common green darners reach adulthood and live to older ages.

D. Younger American robins have higher death rates than older American robins, while younger and older common green

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.

What are the choices

Sorry i was trying to figure out the answer to your question. but can't sorry