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Thursday, September 19

  1. page >> Identify the limited range of wavelengths of the electromagnetic spectrum detected by humans and compare this range with those of other vertebrates and invertebrates edited Identify the limited range of wavelengths of the electromagnetic spectrum detected by humans and co…
    Identify the limited range of wavelengths of the electromagnetic spectrum detected by humans and compare this range with those of other vertebrates and invertebrates
    ...
    other organisms buthello
    but
    not much
    {visible_spectrum_waves_big.jpg} the diagram above shows different colors of each wavelength , with the color purple having the shortest wavelengths and then dark red having the longest
    The table below indicates different animals and ways that they detect wavelengths within the spectrum.
    (view changes)
  2. page >> Identify the limited range of wavelengths of the electromagnetic spectrum detected by humans and compare this range with those of other vertebrates and invertebrates edited Identify the limited range of wavelengths of the electromagnetic spectrum detected by humans and co…
    Identify the limited range of wavelengths of the electromagnetic spectrum detected by humans and compare this range with those of other vertebrates and invertebrates
    ...
    light for exampleenjxample infra-red and
    {visible_spectrum_waves_big.jpg} the diagram above shows different colors of each wavelength , with the color purple having the shortest wavelengths and then dark red having the longest
    The table below indicates different animals and ways that they detect wavelengths within the spectrum.
    (view changes)

Wednesday, June 12

  1. page >> Gather and process information from secondary sources to outline and compare some of the structures used by animals other than humans to produce sound edited ... than humans to produce tproduce sound. Many different animals use a variety of ways wit…

    ...
    than humans to producetproduce sound.
    Many different animals use a variety of ways with the help of their structures to produce sound different to how humans produce sound. Whether the sound is to escape a predator, locate each other from different places and perhaps to attract mates . Both animals and humans depend on sound to communicate and survive
    Humans use their breathing organs along with different structures in the mouth to produce sound. we use these sound for communication between each other, the image below shows what part of the mouth aids in the production of sound.
    ...
    {cicada.jpg} This diagram shows how the loud the cicada can reach in decibels and also how the tymbal membrane works within the cicada's body to create the sound to communicate with each other
    Bats soley depend on using ultrasonic waves and echolocation, they use this to navigate whilst flying around and also to find their food, that habitat of the bats are dark areas and caves which means that they will need to find a way to find their way around , with this being said they will use ultrasonic waves that have very high frequencies that bounce of the walls and anything in the way , when it comes back to the bats ears i creates something like a map placing everything in the bats brain.
    bats.gif {bats.gif}
    The table below indicates the different frequencies of a variety of organisms can hear differnt pitches and the ranges of hearing for that type of animal
    Frequency Range of Hearing for Humans and Selected Animals
    (view changes)

Tuesday, February 19

  1. page >> Describe the anatomy and function of the human ear edited the anatomy and function of the human ear, including: {anatomy_ear.gif} the diagram shows the …

    the anatomy and function of the human ear, including:
    {anatomy_ear.gif} the diagram shows the anatomy of the ear and also the sub sections which indicate the other parts of the ear.juk
    (view changes)

Monday, February 27

  1. page >> Describe the anatomy and function of the human ear edited Describe the the anatomy and ... of the ear. ear.juk Pinna: The external section of the…

    Describe thethe anatomy and
    ...
    of the ear. ear.juk
    Pinna:
    The external section of the ear that perch on each side of the head. The function of this part of the ear is to collect/funnel the sound and route it into the ear canal. as seen in the diagram above.
    ...
    Ear Ossicles:
    These are 3 small looking bones ( hammer , anvil and stirrup) which are located at he middle section of the ear, the function of this part of the ear is to help boost up the vibrations coming from the Tympanic membrane. the image below shows the 3 different types of the the tiny bones within the middle of the ear.
    {middle_ear_bones1.jpg}
    Oval window:
    The part of the ear that links the 3 small bones (Ossicles) to the cochlea the function of this part of the ear is to pick up the vibrations coming from the Ossicles and are passed into the cochlea fluid. the picture below shows where the oval window would sit.
    {cochlea_cross.jpg}
    Round window:
    This is the membrane that separates the middle ear and also the cochlea, the function of this part of the ear is to help balance out the pressure within the cochlea .The image below shows where the round window lies.
    {inner_ear.gif}
    Cochlea:
    The cochlea is something like a fluid chamber that is a snail shell like shape(shown below in the picture), it is responsible for changing vibrations into electromagnetic impulses that are sent to the brain.
    (view changes)

Tuesday, June 9

  1. page >> Use available evidence to suggest reasons for the differences in range of electromagnetic radiation detected by humans and other animals (deleted) edited
    12:55 am
  2. page Bibilography and reference edited Information: ... NSW, Australia accessed accessed from 03/6/2009 onwards Biology &g…

    Information:
    ...
    NSW, Australia
    accessed
    accessed from 03/6/2009 onwards
    Biology

    >Biology
    in context:
    ...
    Peter Hickman
    First
    First published in
    ...
    HSC biology
    By
    By Kerri Humphreys
    ...
    in NSW, Australia
    , [Online]
    Australia,[Online] accessed from
    ...
    on wards
    http://www.medical-dictionaries.org/, , accessed from 03/06/2009 on wards
    Visual encyclopedia , by Hilary Stephens, First published in 1999 by Covent Garden Books in London, last accessed from 03/6/2009

    > HSC online: Biology, At http://www.hsc.csu.edu.au/biology/options/communication/
    by Glen Sawle (Charles Sturt University), [Online] Accessed from 24/05/2009 onward
    Photos & Videos : Click on the photos for the link, they are valid because they came from educational sources.
    (view changes)
    12:54 am
  3. page >> Outline the path of a sound wave through the external, middle and inner ear and identify the energy transformations that occur edited outline the path of a sound wave through the external, middle and inner ear and identify the energ…
    outline the path of a sound wave through the external, middle and inner ear and identify the energy transformations that occur
    Outline the path of a sound wave through the external, middle and inner ear and identify the energy transformations that occur
    The sound that is received is accumulated in the auricle and transferred down the auditory canal to the tympanic membrane. The tympanic membrane is responsible for the vibrations that have the same level of frequency as the sound received. The first of the ossicles (malleus) receives the vibration and is then passed to the remaining two ossicle bones (incus and stapes) which then intensify the vibration. The stapes are attached to the oval window, which then makes the fluid situated inside the cochlea to vibrate. Hair cells located in the organ of Corti recognises the vibration and passes a message along the auditory nerve to the brain. The hair cells detect different sounds due to the different movements of the hair cells which allows the brain to detect the variety of sound.
    From the auricle to the tympanic membrane the energy used is sound energy. As the vibrations are passed from the tympanic membrane to the hair cells in the Organ of Corti this energy converts to mechanical energy. The energy is then converted to electrochemical as the vibrations are passed from the hair cells in the Organ of Corti to the brain. The picture below shows the section of the ears.
    {section.gif}

    (view changes)
    12:43 am

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