Biology 251: Lecture 9Fall 1996

Development

  1. Metamorphosis
    1. Developmental stages
      1. Embryo
      2. Larva
      3. Adult
    2. Terms
      1. Instar
      2. Eclosion
    3. Types
      1. Ametabolous
      2. Hemimetabolous
      3. Holometabolous

  2. Molting
    1. Differential gene action
    2. Steps
      1. Apolysis
      2. Epicuticle formation
      3. Procuticle deposition
      4. Ecdysis
      5. Procuticle expansion
      6. Hardening and darkening
      7. Intermolt endocuticle deposition
    3. Role of the epidermis
    4. Control
      1. Organs
        1. Brain
        2. Corpora cardiaca
        3. Corpora allata
        4. Prothoracic gland
      2. Hormones
        1. PTTH
        2. Ecdysone
        3. Juvenile hormones


"What's your line? Tell me why you wear your cross of gold.
State of mind? Or does it find a way into your soul?
Is it a flame? Is it a passion? A symbol of love living in you?"
Or is it a game? Religion in fashion? Some kind of phase you're going thru?"
MWS, Cross of Gold