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Form and Function (Tissues (Epithelial (interacts with environment…

- - - - Smooth: responsible for involuntary actions (contraction of arteries)
      - Cardiac: lines wall of heart, cells speak to each other the synchronize contractions without interaction with heart.
      - Skeletal: attached to bones and joints, responsible for voluntary movements
  - - - elastic: flexibility
      - Reticular: support for other cells
      - collagenous: strength (some flexibility)
    - - Macrophages: cells that engulf foreign particles through phagocytosis
      - fibroblasts: cells that secrete protein fibers
  - - - Glia: support neurons
      - Neurons: transmit impulses
  - - - facilitates gas exchange inside body
      - barrier for outside of body
- - - - Conformer: internal environment changes to reflect the changes in external environment (ectotherms with temperature)
      - Regulator: maintains internal environment even when external environment fluctuates (endotherms with temperature)
  - - - Metabolic rate
        
        can be measure by: heat loss, oxygen used, calories consumed
        
        energy used over a period of time
      - Elimination of waste (mostly cellular) is the end of metabolic process
      - Comparing Basal (resting) Metabolic Rates
        
        comparing metabolic rate of reptile and mammal:
        
        bc reptiles are conformers, and mammal is an endotherm
        
        mammal would have a faster rate
        
        per kg, smaller animals have higher metabolic rates than larger animals
      - converting food/fuel for cellular purposes, to build proteins, lipids, and nucleic acids
  - - - conveys information by the particular pathway it takes
      - Neurons transmit signals along dedicated routes to specific parts of the body
    - - Only cells with receptors for specific hormones will react when in contact with said hormone
      - Signals hormones released into the bloodstream by endocrine cells and dispersed all over the body
- - - - slower metabolic processes
      - reproduce more slowly (longer pregnancies)
      - need more resources (more to support)
      - takes longer to mature reproductively
    - - lower metabolic rate
      - more chances to reproduce (lives through more mating seasons)
      - collect more resources (better competitors)
      - bigger = live longer
  - - - insects maintain daily cycles whether reared in full light or no light
      - blind mole rates exhibit daily routines despite absence of light cues