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Sperm quantity and quality are the main parameters in semen quality, which is a measure of the ability of semen to accomplish fertilization. Thus, in humans, it is a
The sperm whale (physeter macrocephalus) is a large toothed whale that is part of the cetacean species, which includes all species of whale, dolphin and porpoise.
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sperm: male reproductive cell, produced by most s. With the exception of nematode worms, decapods (e.g., crayfish), diplopods (e.g., millipedes), and mites
In general, it should be remembered that the predictive value (in terms of fertility) of the semen analysis is low. A man with an abnormal semen analysis with a
From until death, men’s bodies are continuously producing sperm. Sperm are created in the testicles and remain there as they mature, a process that takes
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Preformationism, a theory of heredity, claimed that either the egg or the sperm (exactly which was a contentious issue) contained complete preformed individuals