Radiometric dating, often called radioactive dating, is a technique used to determine the age of materials such as rocks. It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.Radiometric dating, often called radioactive dating, is a technique used to determine the age of materials such as rocks. It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope
How does radiometric dating work quizlet?
The process of measuring the absolute age of geologic material by measuring the concentrations of radioactive isotopes and their decay products. The time required for one half of the atoms of a radioisotope to emit radiation and decay products. You just studied 7 terms!
What does fitness mean when speaking in terms of evolution?
To an evolutionary biologist, fitness simply means reproductive success and reflects how well an organism is adapted to its environment. We call them fit because of how successfull they reproduce, not how well they do at athletic events.
Is natural selection a process?
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
Is natural selection random?
The genetic variation on which natural selection acts may occur randomly, but natural selection itself is not random at all. The survival and reproductive success of an individual is directly related to the ways its inherited traits function in the context of its local environment.