The Markov process is a part of probability theory and is useful for modeling random phenomena.

This area is still in a developing stage.

She decided to undergo facial reconstructive surgery.

He is dedicated to the study of organogenesis.

It is difficult to predict the occurrence of earthquakes.

He is an expert in embryology, studying the developmental processes of many kinds of organisms.

He is writing a thesis on abiogenesis.

My account is protected by 2-step authentication.

He has three swords.

He was wearing an ancient ornamental belt, a pei.