Pineal gland

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Across
  1. 6. events such as coloration related to thermoregulation or aposematic coloration can occur in some animals thanks to this animal characteristic
  2. 8. Hormone released by the pineal gland
  3. 9. external stimulus that inhibits melatonin production
  4. 10. coloration by which some butterflies exhibit coloured patterns in their wings to keep predators away from them
  5. 12. adaptive response to darkness involves this process affecting the skin
  6. 13. the size of pars intermedia in aquatic animals is quite big/small because of the humidity of their enviroment
  7. 14. one of these factors is not related to the animal colour: nutrition, light, emotional state
Down
  1. 1. coloration by which some frogs are able to camouflage in their natural environment
  2. 2. these hormones are secreted by the pars intermedia of pineal gland and is related to physiological functions mediating pregnancy and behaviour, among others
  3. 3. the changing colour in the skin of chameleons is in charge of this function
  4. 4. this enzyme regulates production of melatonin and it gets activated in dark conditions
  5. 5. pineal gland is located in this organ
  6. 7. light coloured skin of some animals might be cause for this function related to solar radiation
  7. 11. pigment effector cells starting with “M”