Agglutination reaction. Agglutination refers to a clumping that occurs when an antigen comes into contact with its corresponding antibody. This process mimics what happens in the body when antibodies cause antigens to agglutinate, promoting easy removal of the infectious organism.
Cytopathology is a branch of pathology involving the study and diagnosis of diseases at the cellular level using a light microscope. Traditionally the discipline has been divided into cervical cytopathology (commonly referred to as cervical cytology) and diagnostic cytopathology. Diagnostic cytology is mainly used for diagnosis of cancer in many parts of the body.
Paleontology is the science dealing with the fossils of long-deceased animals and plants that lived up to billions of years ago.It's an interdisciplinary field involving geology, archaeology, chemistry, biology, archaeology and anthropology. paleontologist studies the history and process of evolution by examining fossils, the preserved traces of long dead animals and plants. Using data from fossilized bones, ancient pollen, and other clues, paleontologists dig up the details on past climates and past extinctions.