Examlex
Each halogen atom, such as chlorine, fluorine, and bromine, in the Earth's atmosphere catalyzes the destruction of ozone for a long time ranging from decades to centuries.
Organogenesis
The process during embryonic development in which organs are formed from the three germ layers.
Embryonic Development
The process by which an embryo forms and develops, from the fertilization of an egg to the fetal stage.
Neural Tube
An embryonic structure that develops into the central nervous system, including the brain and spinal cord.
Organogenesis
The process by which the organs and tissues develop from the embryonic cells during development.
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