Responding to the Environment

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Responding to the Environment
2011-04-07 14:38:59
Responding Environment Biology Animal Survival crobertsonx

Biology, Subtopic, Animal Survival
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  1. animals are constantly receiving information about their changes in their __________. These changes can cause an animal to _______ in a particular way.
    • surroundings
    • respond
  2. The factors which cause a response from an animal are called _____
  3. Daphnia are tiny animals that live in ponds. They feed on green algae. When light is shone from one direction on water containing Daphnia, they move ______ the light.
  4. The survival of Daphnia depends on stimuli because the green algae need light to _________. If they move towards the light, the Daphnia have a ______ chance of finding food
    • photosynthesise
    • better
  5. Woodlice are small animals that live under bark and leaf litter. They breathe through ____.
  6. If woodlice are put in a container which is moist at one end and dry at the other, they move about ______ in the dry end but move more ______ at the wet, so they tend to gather at the ___ ___.
    • faster
    • slowly
    • wet end
  7. Woodlice ____ water as they breathe through gills.
  8. If woodlice are put into a container which is partly lit and partly in shade, they move about _______ on the lit side of the container, while they tend to ____ down on the dark side, so they tend to gather on the _____ side.
    • faster
    • slow
    • dark
  9. Woodlice tend to stay out of the _____, because they can be easily spotted and eaten by ________.
    • light
    • predators
  10. Paramecium is a tiny single-celled organism that lives in pond water. It feeds on decomposing bacteria which live in water that is slightly ______.
  11. If paramecium are put into a container which has a ______ pH at one end and a ______ pH at the other end, they move towards the acidic end of the container.
    • neutral
    • slightly
  12. Paramecium move towards weakly acidic water, to ______ their chances of finding food.
  13. Environmental factors which affect the behaviour of animals include ____, _______ and __.
    • light
    • humidity
    • pH
  14. The responses that animals make, stimuli, _______ the chances of survival.
  15. An example of a regularly occuring stimuli is:
    the change from ____ day to ____ night every 24 hours
    • light
    • dark
  16. A stimuli can trigger _________ ________ in animals
    rhythmical behaviour
  17. Rhythmical behaviour is behaviour which is repeated at ______ ______. It is controlled by an animals internal biological clock but is triggered by a regularly occuring ______ ______.
    • regular intervals
    • external stimulus
  18. In the absence of the trigger stimulus, the _______ ______ will still occur
    rhythmical behaviour
  19. Most animals are active during the day, these are known as _______ animals. The trigger stimulus for there animals is increasing light intensity.
  20. diurnal animals depend on a trigger stimulus which occurs everyday. It increases the chances of _______ ____ and increases the chances of ________.
    • finding food
    • survival
  21. Swallows fly from Britain to warmer climates every autumn, this rhythmical behaviour is called _______. The trigger stimulus for this is __________ daylength in autumn.
    • migration
    • decreasing
  22. Swallows migrate to somewhere warmer, and a place which has more food available to them, to increase their _______ of _______
    chances of survival
  23. Animals like hedgehogs, in late autumn every year, enter a state called ________. The trigger stimuli for this behaviour are decreasing ________ and decreasing _______
    • hibernation
    • daylength
    • temperature
  24. Hedgehog enters hibernation to enable the animals to _______ the harsh winter conditions, increasing their chances of survival.
  25. Animals like rabbits show ____ behaviour every spring. The trigger stimulus for this behaviour is _______ daylength.
    • mating
    • increasing
  26. Mating in spring is important so that their young are born when there is plenty of ____ for them to ____, increasing the chances of survival.
    • food
    • grow
  27. Some animals, like deer show mating behaviour in autumn, because they have _____ pregnancy times so their young are still born in the _____ and have an increased chance of survival.
    • longer
    • spring
  28. If larger animals mated in spring, their young would be born just before winter, when conditions for survival are _____. The trigger stimulus for mating behaviour in deer is ________ daylength.
    • worse
    • decreasing