orogenesis
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The reproductive system is the organ system that produces two cells: the egg (ova) in females and sperm in males. These cells are involved in the process of fertilization to generate a new organism.
In humans, the reproductive system is responsible for the production of sex cells (gametes). In the male, the sex cells are produced in the testes located in the scrotum. The process of sperm formation is called spermatogenesis. In the female, the sex cells are produced in the ovaries. The process of egg formation is called oogenesis.
Implementation
Theory that oceanic crust forms along submarine mountain zones, known collectively as the oceanic ridge system, and spreads out laterally away from them.
The brain and spinal cord collectively form the central nervous system.
Implementation
Central Nervous System
A mountain belt is the largest.Then the mountain system is the next largest.Last the mountain range.
Mountain < Mountain range < Mountain system < Mountain belt.
A mountain system is an area of interconnected mountain ranges. The mountain system has a series of ranges linked together by geological features.
Collectively they make up what is known as the autonomic nervous system.