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MUSCLES (MUSCLES TISSUES (3 types of muscles tissues in vertebrates (…

- - - - advantage
        
        air passes less friction- less resistance to move
      - disadvantage
        
        have to overcome the force of grvity and body balance during moving
      - adaptation
        
        have powerful muscle
        
        have strong skeletal support
        
        some of animal have tail for balance
    - - advantage
        
        water provide bouyancy - reduce energy to overcome gravity
      - disadvantage
        
        water denser than air - need more enery to overcome friction
      - adaptation
        
        have sleek, fusiform (torpedo) shapes - increasing hydrodynamic
    - - advantage
        
        air less friction - so they can travel very fast
      - disadvantage
        
        gravity
      - adaptation
        
        have airfoils shaped wings - create enough lift to fight gravity
        
        strong fligh muscle
        
        have efficient respiratory system
- - - - cnidarian
      - planarian
      - nematodes
      - annelids
    - - insect
      - arachnid
      - myriapods
      - crustaceans
    - - all vertebrates
  - - - :sunflower: control their movement by using muscle to move fluids under pressure in closed body compartment
      - :sunflower: rythmic contraction of longtitudinal circular
      - :sunflower: oblique muscle creates peristaltic movement
    - - :hearts: animal with hard skeleton will move their limbs with a pair of antagonistic muscle
      - :hearts: flexor and extensor muscle will move the skeleton(lever) with hinged joint as fulcrum
      - :hearts: this muscle will work together but in opposite direction
        
        one muscle will relax, while others contarct
        
        :muscle: flexor - bind the limb to an acute angle when contracted
        
        :muscle: extensor - straighten the limb when contracted
- - - - :hearts: thin filament ; consists of actin strands
      - :hearts: thick filament - consists of myosin strands
- - - - inwards
      - attached to Zlines