If the half-life of a decaying isotope is 10 years, which statement is true after 10 years?
A. There are more daughter nuclei than parent nuclei in a sample.
O B. There are more parent nuclei than daughter nuclei in a sample.
O C. The relative numbers of atoms cannot be determined.
O D. The numbers of parent nuclei and daughter nuclei in a sample are
equal.

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

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: