During spermatogenesis, which of the following undergoes meiosis ii to reproduce for haploid mature sperm cells?

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

Ais a group of individuals of the same that exist together in the same place at the same time

Explain how scientists use geologic time to determine the age of landforms.