SEM of giant snail sperm

SEM of giant snail sperm

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Credit: MICROFIELD SCIENTIFIC LTD/SCIENCE PHOTO LIBRARY

Caption: Giant snail sperm. Scanning Electron Micrograph (SEM) of giant snail sperm (also called spermatozoa). Sperm are the motile male sex cells. Each sperm is broadly divided into a head, neck and tail regions. The pear-shaped head contains the nucleus and genetic material of the male needed to fertilize the female egg (ovum). The head is joined to the tail by a short neck. The sperm's tail enables it to swim by whiplash movements, an action that propels it to reach the ovum. Magnification: x1000 at 7x10 inch size.

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Keywords: anatomy, animal body, giant, giant snail, snail, snail sperm, sperm, spermatozoa

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