Find information about the time sequence of insemination and fertilization. Describe the options for the ratio in time of two stages of reproduction: insemination and fertilization.
Very often, fertilization occurs after insemination. But in some species, some time passes between these events. For example, in bats, sperm winter in the genital tract of a female. In ermines and sables, the development of the zygote is suspended for the winter.
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