The process of the development of reproductive cells in males is called Spermatogenesis. Spermatogenesis develops immature germ cells into mature sperm cells. Oogenesis is the process of the development of reproductive cells in females. Fertilization happens when the sperm and egg cells unite.
1. Bacteria
2. Grass
3. Earthworm
4. Field Mice
5. Red-tailed hawk
The main driver of a climate zone is the amount and directness of sunlight that reaches the Earth's surface. In the tropical regions, there is a fairly constant amount of sunlight throughout the year. The maximum sun angle is also higher above the horizon.
