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Metamorphosis and Metagenesis

Metamorphosis and Metagenesis. Every Organism experiences growth and development. In several animals, for example frog s , their growth and development through process called metamorphosis. The Metamorphosis. is happen to change of body shape from egg until adult shape [ imago ].

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Metamorphosis and Metagenesis

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  1. Metamorphosis and Metagenesis

  2. Every Organism experiences growth and development. In several animals, for example frogs, their growth and development through process calledmetamorphosis.

  3. The Metamorphosis • is happen to change of body shape from egg until adult shape [ imago ]. • Metamorphosis happen in insect and frog • Metamorphosis some trough chrysalis phase (pupa )/cocoon and some do not pass through chrysalis (phase pupa /kepompong).

  4. Butterfly methamorphoses c a b f d e h h g

  5. BUTTERFLY

  6. metamorphose

  7. Imperfect metamorphoses in insect

  8. FROG metamorphoses

  9. Methamorphoses process of the frog : • Ovulated eggs • Embryo development phase (cell fission, blastula stadium, gastrula stadium and tail begin to grow. • Hatching stadium • Development during metamorphosis, those are

  10. Characteristics frog metamorphose steps • Inners gill : its of 8 day old • Gills cover : its of 12 day old • Back leg : its of 2,5 months day • Front leg : its of 3 months old • Metamorphosis is finished, it is indicated with tail disappearance • The frog of 1 year old

  11. imperfect /incomplete metamorphosis : if the shape in start of life as same as / similar with adult life. Imperfect metamorphose are as follow Egg -- Young Animal (nymph) --adult animal/ imago Ex: cockroach/kecoa, cricket, grasshopper, beetle, termites, 2. Perfect /complete Metamorphosis :If there are different shape between start of life & adult life Commonly happens in the insect group of homimetabola. The phase of perfect metamorphosis in insect are as follow : Eggs—Larva—chrysalis[cocoon,pupa]-adult /Imago Ex: dragon fly, fly, bee, mosquito, butterfly , frog

  12. Metamorphosis that through Phase of chrysalis (pupa ) • The Metamorphosis happens in insect. The Metamorphosis' in insect is separated into two, those are Imperfect and perfect metamorphosis. Imperfect Metamorphosis commonly happens in the group of insect hemimetabola, the eggs hatch to be young animal and development to be adult animal

  13. Metagenesis • 1. Metagenesis is change of generation from asexual generation to sexualgeneration. Phase generative & vegetative in their circle of life. Metagenesis happens in plant, particularly in moss plant / lumut and fern plant / paku-pakuan, and animal jelly fish( Aurelia sp , Obelia sp ) • 2. Metagenesis involves sexual cycle (gametophyte generation ) and asexual cycle ( Sporophyte generation)

  14. FERN METAGENESIS Vegetative/asexsual Generative/sexsual

  15. FERN METAGENESIS

  16. THE LIFE CYCLE OF A MOSS

  17. MOSS

  18. The differences beetwen fern metamagenesis & moss metagenesis

  19. UBUR UBUR / jelly fish ( Aurelia sp, Obelia sp) generative vegetative

  20. DIFFERENCES BETWEEN MOSS & FERN

  21. Factors that influence growth & development 1. internal factor a. Gene/genom b. Hormone plant hormone a. Auxin : promote devision in the apical meristem (pucuk daun ) b. Ethilen : promote the fruits maturation c. Absisat : supporting the realising old leaf & fall fruits d. Geberulin : promote enlarge of frits animal hormone a. Tiroksin : controle animal growth , in frog this hormon help to start of the methamorphose process. b.somatomedin : controle bone growth. c. Edicson & juvenil : influence growth in larva & imago phase. • External factor a. Food b. Environment.

  22. Growth factor internal factors : gene & hormon

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