The monarch

Páginas: 2 (326 palabras) Publicado: 5 de septiembre de 2012
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The Monarch butterfly (Danaus plexippus) is a milkweed butterfly (subfamily Danainae), in the family Nymphalidae. It is perhaps the best known of allNorth American butterflies. Since the19th century, it has been found in New Zealand, and in Australia since 1871 where it is called the Wanderer.[3][4][5]In Europe it is resident in the Canary Islands, the Azores, and Madeira, and is foundas an occasional migrant in Western Europe. Its wings feature an easily recognizable orange and black pattern, with a wingspan of 8.9–10.2 centimetres (3½–4 in).[6] (The Viceroy butterfly has asimilar size, color, and pattern, but can be distinguished by an extra black stripe across the hind wing.) Female Monarchs have darker veins on their wings, and the males have a spot calledthe "androconium" in the center of each hind wing[7] from which pheromones are released. Males are also slightly larger.

The Monarch is famous for its southward migration and northward return in summer from Canadato Mexico which spans the life of three to four generations of the butterfly.







COLEGIO BILINGUE

Salvador Novo





Miss.Lizeth





The Monarch Butterfly





JimenaMedina





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Human Genome: The human genome is the genome of Homo sapiens, which is stored on 23 chromosome pairs. 22 of theseare autosomal chromosome pairs, while the remaining pair is sex-determining. The haploid human genome occupies a total of just over 3 billion DNA base pairs. The Human Genome Project (HGP) produceda reference sequence of the euchromatic human genome, which is used worldwide in biomedical sciences.

The haploid human genome contains ca. 23,000 protein-coding genes, far fewer than had beenexpected before its sequencing.[1][2] In fact, only about 1.5% of the genome codes for proteins, while the rest consists of non-coding RNA genes, regulatory sequences, introns, and noncoding DNA (once...
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