Invertebrates dominate the animal kingdom, making up 97 percent of all creatures. These animals, lacking a backbone, display ...
IN NATURE some time ago (115, 155; 1925) Dr. Bidder raised again the interesting fundamental question of the cause of normal death in aquatic animals, and stated that so far as he knew there was no ...
This is a preview. Log in through your library . Abstract Four aspects of sexual reproduction were examined in a northeastern Pacific population of the kamptozoan (entoproct) Barentsia hildegardae.
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