Sperm
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Sperm is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction. Sperm cells contribute approximately half of the nuclear genetic information to the diploid offspring. Anim
Motile sperm cell attempting to penetrate an ovum's coating to fertilize it.
Electron micrograph of human spermatozoa magnified 3140 times.
Human sperm stained for semen quality testing
Sexual reproduction
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Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete with a single set of chromosomes combines with another gamete to produce a zygote that develops into
Sperm
…Sperm (pl.: sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one). Sperm cells contribute approximately half of the nuclear genetic…
Aphid giving birth to live young from an unfertilized egg
Harvestmen mating
The nauplius larva of a penaeid shrimp
An Australian emperor dragonfly laying eggs, guarded by a male