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5 Written questions

5 Matching questions

  1. Countercurrent exchange
  2. Central nervous system
  3. Affector neurons
  4. Cuticle
  5. Axon
  1. a The part of the nervous system that is comprised of the brain and spinal cord.
  2. b Arrangement of vascular tissues that enable heat to be transferred from a vessel carrying fluid from the core to an extremity, to a vessel carrying fluid from an extremity to the core.
  3. c Waxy outer layer on a leaf.
  4. d Exntension of a nerve cell along which impulses are transmitted away from that cell.
  5. e Neurons that transmit information about changes in external or internal conditions to the central nervous system. Also called sensory neurons.

5 Multiple choice questions

  1. Organism whose body temperature fluctuates with its surroundings.
  2. The maintenance of constant internal salt and water concentrations in internal fluids.
  3. Organims whose body temperature varies with the external environment. Ectothermic.
  4. Branched extensions of nervve cells that transmit impulses to that cell.
  5. Features that assist an organism to survive in a particular habitat.

5 True/False questions

  1. PituitaryEndocrine attached to the hypothalamus. Influences the production of thyroxine by the thyroid gland.

          

  2. XerophytesPlants with characteristics that enable resistance to drought and life in very arid areas.

          

  3. Tolerance rangeExtent of variation in an environmental factor within which a species can survive.

          

  4. Negative feedbackOrganism whose body temperature fluctuates with its surroundings.

          

  5. NeuronsExntension of a nerve cell along which impulses are transmitted away from that cell.

          

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