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DO NOW: TAKE 4 HANDOUTS FORM FRONT

DO NOW: TAKE 4 HANDOUTS FORM FRONT . 1. Take out Reinforcement Activity. 2. Take 2 colored pencils from the tray and sit quietly and write down HW HW : Complete the venn diagram Read pages 80-85 in textbook Study for Meiosis and Reproduction Quiz

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DO NOW: TAKE 4 HANDOUTS FORM FRONT

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  1. DO NOW: TAKE 4 HANDOUTS FORM FRONT • 1. Take out Reinforcement Activity. • 2. Take 2 colored pencils from the tray and sit quietly and write down HW • HW: Complete the venn diagram • Read pages 80-85 in textbook • Study for Meiosis and Reproduction Quiz • Bring in your journals (composition book) if you have not already done so.

  2. Why do genetics and heredity exist? • Life is continuous because of reproduction & development. • Reproduction is necessary for the survival of the species, but not the organism. • There are two ways traits can be passed from parent to offspring.

  3. Asexual reproduction • Requires only one parent   • Doesn’t involve sex cells (sperm & egg)   • Results in growth of another individual   • Offspring are clones of the parents(genetically identical) • Ex: Paramecium Plants

  4. Sexual reproduction • Requires two parents • Involves specialized sex cells • Results in the production of another individual • Offspring are unique – not identical to parent • Ex: Humans Plants • Some organisms reproduce: asexually, sexually, or both ways.

  5. Methods of Asexual Reproduction:   • Budding - offspring grow out of the parent’s body • Ex: Hydra • Internal buds - release a mass of cells that develops internally • Ex: Sea sponge

  6. Fragmentation – organism splits in half   • Ex: Planaria (worms) • Regeneration - piece of the organism detaches & develops • Ex: Starfish

  7. Methodof Sexual Reproduction: • Sex cells join to create a fertilized egg. (Draw in:

  8. Fertilization & development can occur internally or externally. • Internal Fertilization • Ex. Human, dogs • External Fertilization • Ex. Turtles, plants, snake, fish • Internal Development • Ex. Humans, monkey, cats • External Development • Ex. Chicken, lizard, fish, platypus, insects

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