The New Encyclopædia BritannicaEncyclopædia Britannica, 1992 |
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Page 423
... male usu- ally has two pairs of wings ; the female , often wingless or with vestigial wings , carries eggs in egg cases ( called ootheca ) that protrude from her body . After the female deposits an egg case , soft white nymphs emerge ...
... male usu- ally has two pairs of wings ; the female , often wingless or with vestigial wings , carries eggs in egg cases ( called ootheca ) that protrude from her body . After the female deposits an egg case , soft white nymphs emerge ...
Page 755
... male and female gametes ( sex cells ) from different individuals of the same species . Cross - fertilization must oc- cur in dioecious plants ( those having male and female organs on separate individuals ) and in all animal species in ...
... male and female gametes ( sex cells ) from different individuals of the same species . Cross - fertilization must oc- cur in dioecious plants ( those having male and female organs on separate individuals ) and in all animal species in ...
Page 955
... males in all but two species- the musk deer ( Moschus moschiferus ) and the Chinese water deer ( Hydropotes inermis ) — and are borne by both male and female reindeer , or caribou ( Rangifer tarandus ) . The antlers , which are solid ...
... males in all but two species- the musk deer ( Moschus moschiferus ) and the Chinese water deer ( Hydropotes inermis ) — and are borne by both male and female reindeer , or caribou ( Rangifer tarandus ) . The antlers , which are solid ...
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