Answer:
Either (1.) Fossils or (2) Radiometric dating.
Explanation:
Fossils are an obvious answer to this, but radiometric dating is the method most scientists use to find the age of rocks. Radioactive isotopes break down predictably, so the farther along this process is, the older the rock is.
They attach to the chromosomes, line them up during metaphase, and pull them apart during anaphase
Answer: The brain is the vital organ in humans and each part of brain exhibit a distinct function.
Explanation:
The frontal part of the brain is responsible for controlling the cognitive skills, movement of the body, emotions, memory, judgement, sexual activity, linguistic skills, and others. It controls the behavior. It is the overall control panel of the human body. If the frontal lobe is damaged then this can negatively affect the human personality. The person suffers from difficulty in concentrating as well as planning.