Why can fraternal twins be different genders, but identical are always the same gender?

Read the opening lines of chapter 1 of twenty years at hull house and answer the question. on the theory that our genuine impulses may be connected with our childish experiences, that one’s bent may be tracked back to that “no-man’s land” where character is formless but nevertheless settling into definite lines of future development, i begin this record with some impressions of my childhood. the author begins her book with memories from her childhood. according to this excerpt, addams felt strongly that childhood was important because its trials and triumphs will support a successful life suffering during this time can create long-lasting goals it has a strong impact on personal growth throughout life children are free of the ethical judgments that adults make next question

Which passage from kennedy's inaugural address is an example of an allusion? to our sister republics south of our border, we offer a special pledge-to convert our good words into good deeds-ir new alliance for progress but this peaceful revolution of hope cannot become the prey of hostile powers a call to bear the burden of a long twilight struggle, year in and year out, rejpicing in hope patent in tribulation it a free society cannot the many who are poor, it cannot save the few who are rich

Which excerpt from the war of the worldseffectively reveals how the author relates the climax of the narrative through the narrator's thoughts? the war of the worldsall this had happened with such swiftness that i had stood motionless, dumbfounded and dazzled by the flashes of light. had that death swept through a full circle, it must inevitably have slain me in my surprise. but it passed and spared me, and left the night about me suddenly dark and unfamiliar.and then, with a renewed horror, i saw a round, black object bobbing up and down on the edge of the pit. it was the head of the shopman who had fallen in, but showing as a little black object against the hot western sun.at that time it was quite clear in my own mind that the thing had come from the planet mars, but i judged it improbable that it contained any living creature. i thought the unscrewing might be automatic.my mind ran fancifully on the possibilities of its containing manuscript, on the difficulties in translation that might arise, whether we should find coins and models in it, and so forth. yet it was a little too large for assurance on this idea. i felt an impatience to see it opened.