Types of fertilization.. External and internal fertilization. The union of the masculine ligament in the female fetus inside or outside the female body

External fertilization:
- The union of the masculine ligament in the female fetus outside the female body.
- Aquatic animals (salmon). Amphibians (frogs).
- The female puts the eggs in the water and the male ejaculates his sperm close to the eggs and moves the sperm towards the eggs and fertilize them.
- Cairo:
1 - the secretion of the gametes in the same place and time.
2 - The secretion of these gametes in large quantities.
Fertilization:
- The union of the masculine ligament in the female fetus within the female body.
- Wild animals and some aquatic animals.
- The male ejaculates his sperm within the body of the female sperm move towards the eggs for fertilization.
Features:
- Preserving the gametes of drought.
- Increase the probability of fertilization.