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Separate genders - PowerPoint PPT Presentation

Meiosis

Meiosis Overview of meiosis Homologous chromosomes Stages of meiosis Spermatogenesis & oogenesis A. Overview of Meiosis Meiosis: Specialized nuclear division in which the number of chromosomes is reduced by half Purpose of meiosis: the formation of gametes Occurs only in germ-line tissue

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769 views • 19 slides

Meiosis

Meiosis. Overview of meiosis Homologous chromosomes Stages of meiosis Spermatogenesis & oogenesis. A. Overview of Meiosis. Meiosis: Specialized nuclear division in which the number of chromosomes is reduced by half Purpose of meiosis: the formation of gametes

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498 views • 19 slides

Phylum Annelida

Phylum Annelida. The Segmented Worms. Symmetry and Body Plan. Bilateral symmetry Tube-within-a-tube plan Separate mouth and anus Coelomate (true body cavity) Segmented (repeated body features). Digestion and Excretion. Digestion : Complete digestive tract.

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415 views • 16 slides

ARTHROPODS

ARTHROPODS. Arthropod Characteristics. Bilateral symmetry Exoskeleton made of chitin Shed (Molted) with growth Protection Prevent water loss Support body Attach to muscles. Jointed appendages Allows flexibility and different tasks Have body segments Related to segmented worms.

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340 views • 7 slides

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Separate genders - PowerPoint PPT Presentation

Meiosis

Meiosis

Phylum Annelida

ARTHROPODS