ctivity 1: In or Out? irections: Study the two (2) types of fertilization - internal and external. Describe each type of fertilization on the table below. Canine Mating First Stage Coitus (1-2 mins) The Turn (2-5 seconds) Figure 1: Internal fertilization Internal fertilization Female Male Sperm and Eggs are released into water Figure 2: External Fertilization External fertilization​