Sentence Examples

  • The male duct vd becomes fleshy and muscular near its termination at the genital pore, forming the penis p. Attached to it is a diverticulum fl, in which the spermatozoa which have descended from the ovo-testis are stored and modelled into sperm ropes or spermatophores.
  • The spermatozoa differ from those of other animals in having the form of cells which sometimes perform amoeboid movements.
  • Though possessing a complete copulatory apparatus and producing large quantities of spermatozoa, they have lost their sexual instinct and play no part in the economy of the species.
  • Spermatozoa and ova.
  • The spermatozoa exhibit many differences in shape, size and proportions, in the various groups of birds.

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