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6. peripheral thermoreceptors primary role is to warn the hypothalamus that a temperature change is coming

  • true
  • false

7. fast responses travel via the ________ system

  • nervous
  • hormonal

8. reactions that release energy in the form of heat

  • endothermic
  • exergonic
  • thermoflammatory

9. endotherm

  • an organism that uses heat from metabolic reactions to maintain body temperature
  • an organism that relies on external sources of heat to maintain body temperature

10. negative feedback involves ________ a change

  • reversing
  • heightening

11. enable rapid responses

  • neuronal system
  • hormonal system

12. the part of the brain that coordinates homeostatic responses

  • kidney
  • hypothalamus
  • pituitary gland

13. enables long-term responses

  • hormonal system
  • nervous system

14. organisms that are able to maintain a constant body temperature

  • endotherms
  • ectotherms

15. which is not a disadvantage of endotherms?

  • overheat in hot weather
  • use a lot of energy to maintain body temperature so less remains for growth
  • they can live in colder parts of the environment
  • require more food

16. to WARM UP, an ectotherm.....

  • moves into the sun, lies on a warm surface, exposes a larger surface area to the sun
  • moves out of the sun, moves underground, exposes a smaller surface area to the sun

17. A good communication system should NOT ....

  • enable rapid communication
  • enable short term + long term responses
  • enable cells to communicate with each other
  • enable specific communication
  • be able to secrete ADH
  • cover the whole body

18. which is not behaviour of an endotherm to lose heat?

  • wet skin evaporating
  • spread limbs out
  • hide from sun
  • remain inactive
  • roll into a ball
  • reduce SA exposed to sun

19. central receptors detect changes to the ________ environment

  • internal
  • external

20. ______ _____ muscles contract to raise the hairs on the skin

  • skeletal
  • erector pili
  • smooth