The New Encyclopædia Britannica: L-ZEncyclopædia Britannica, 1992 - 32 pages |
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Page 430
... males . Once the male clasps the female , a copulatory embrace called am- plexus , she selects the site for depositing the eggs . In the primitive frogs ( superfamilies Discoglossoidea , Pipoidea , and Pelobatoidea ) , the male grasps ...
... males . Once the male clasps the female , a copulatory embrace called am- plexus , she selects the site for depositing the eggs . In the primitive frogs ( superfamilies Discoglossoidea , Pipoidea , and Pelobatoidea ) , the male grasps ...
Page 598
... male gametophytes , and megaspores , which develop into female gametophytes . As in gymnosperms , both male and female gametophytes are reduced to microscopic proportions . The male game- tophyte is ultimately shed as the pollen grain ...
... male gametophytes , and megaspores , which develop into female gametophytes . As in gymnosperms , both male and female gametophytes are reduced to microscopic proportions . The male game- tophyte is ultimately shed as the pollen grain ...
Page 866
... male draws the sperm into his pedipalps ; the process of charging the pedipalps , known as sperm induction , may require minutes or hours for completion . Sperm induction may occur before a male seeks a mate or after the mate is found ...
... male draws the sperm into his pedipalps ; the process of charging the pedipalps , known as sperm induction , may require minutes or hours for completion . Sperm induction may occur before a male seeks a mate or after the mate is found ...
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