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5 Written questions

5 Matching questions

  1. Homeothermic
  2. Central nervous system
  3. Neurons
  4. Countercurrent exchange
  5. Negative feedback
  1. a Organism that is able to maintain an internal body temperature within a narrow range. Endothermic.
  2. b Feedback that tends to stabilize a process or conditions by reducing its rate or output when its effects are too great.
  3. c 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.
  4. d The part of the nervous system that is comprised of the brain and spinal cord.
  5. e Nerve cells.

5 Multiple choice questions

  1. In animals, chemicals produced in endocrine glands that are released into and transported via that bloodstream to other parts of the body where they act.
  2. Plants with characteristics that enable resistance to drought and life in very arid areas.
  3. Organims whose body temperature varies with the external environment. Ectothermic.
  4. Organisms whose body temperature is maintained by internal metabloic sources.
  5. Excretory organs involved in osmoregulation.

5 True/False questions

  1. Cell bodyPart of the neuron that contains the nucleus. Also called the soma.


  2. Antidiuretic hormoneHomrone which increases reabsorption of water into the blood from the distal tubules and collecting ducts of nephrons in the kidney.


  3. TranspirationLoss of water from the surfaces of a plant.


  4. AdaptationsLoss of water from the surfaces of a plant.


  5. InterneuronsNerve cells.