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Mammals

sophie waddington 18 questions

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Questions in this quiz (18)

  1. 1Mammals
    - 5,416 species of mammals
    - all have fur made of [blank_start]keratin[blank_end]
    - bear live young > sucked with [blank_start]milk[blank_end]
    - have [blank_start]sweat[blank_end] glands
    - they have different kinds of [blank_start]teeth[blank_end] > generally replaced once at most
    - mostly all have [blank_start]pinna[blank_end] = ears, there are 3 bones that link the ear
    - [blank_start]endothermic[blank_end] (warm-blooded)
    - 4 chambered [blank_start]heart[blank_end]
    - [blank_start]diaphragm[blank_end] ventilates the floppy lungs
    - they have an extensive [blank_start]sensory[blank_end] palate
    - folded cerebral [blank_start]cortex[blank_end] which allows them to show complex learning and behaviours
    1. Akeratin
    2. Bmilk
    3. Csweat
    4. Dteeth
    5. Epinna
    6. Fendothermic
    7. Gheart
    8. Hdiaphragm
    9. Isensory
    10. Jcortex
  2. 2Extensive [blank_start]sensory[blank_end] palate
    - mammals can not only hear sounds of high and low frequencies but they can also [blank_start]distinguish[blank_end] between them > this is why we can listen to music
    - learning plus basic sensory apparatus contribute to the sensory palate and allow us to show [blank_start]complex[blank_end] behaviours
    - many mammals have sensory abilities that exceed those of humans e.g. some male [blank_start]moths[blank_end] can detect [blank_start]pheromones[blank_end] in minute concentrations however they cannot detect much else
    - humans have an enormous library of smells they can identify > [blank_start]dogs[blank_end] have even more!
    1. Asensory
    2. Bdistinguish
    3. Ccomplex
    4. Dmoths
    5. Epheromones
    6. Fdogs
  3. 3Mammals
    - small and medium sized mammals coexisted with [blank_start]dinosaurs[blank_end] for millions of years
    - after extinction of non-avian dinosaurs (end of [blank_start]mesozoic[blank_end] era) mammals increased in number, diversity and size

    mammals can be split into 2 groups: [blank_start]prototheria[blank_end] meaning 'before beast' and '[blank_start]theria[blank_end]' meaning beast
    1. Aprototheria
    2. Btheria
    3. Cdinosaurs
    4. Dmesozoic
  4. 4Hearing: bird vs. mammal
    - birds and mammals ears are similar but different structures and origins

    - the tympanic membrane of the ear is the part that vibrates

    mammal [blank_start]cochlea[blank_end] are [blank_start]longer[blank_end] and have more sensory cells and therefore more coils than birds
    - cochlea is the spiral cavity containing the organ of Corti which generates nerve impulses in response to sound vibrations
    1. Acochlea
    2. Blonger
  5. 5[blank_start]Prototheria[blank_end] = 'before beast'
    - 'incomplete mammals'
    - 5 species in Australia and [blank_start]new[blank_end] guinea
    - duck [blank_start]billed[blank_end] platypus and 4 species of echidnas
    - sprawlings [blank_start]legs[blank_end]
    - no [blank_start]pinna[blank_end] only simple inner ears
    - adults are toothless
    - lack a [blank_start]placenta[blank_end] > they lay eggs instead
    - lack [blank_start]nipples[blank_end] > mammary glands ooze milk onto the fur
    - have electroreceptors
    - [blank_start]male[blank_end] platypus' have a poisonous spur
    - the platypus [blank_start]genome[blank_end] was sequenced and it was found that they shared 80% of the genome with placental mammals
    1. APrototheria
    2. Bnew
    3. Cbilled
    4. Dlegs
    5. Epinna
    6. Fplacenta
    7. Gnipples
    8. Hmale
    9. Igenome
  6. 6Theria = meaning [blank_start]beast[blank_end], can be split into groups:

    - [blank_start]marsupials[blank_end]
    - [blank_start]eutheria[blank_end] (placental mammals)
    1. Amarsupials
    2. Beutheria
    3. Cbeast
  7. 7[blank_start]Marsupials[blank_end]
    - group of theria 'beast'
    - females (occasionally males too) carry and feed young in a ventral pouch called the [blank_start]marsupium[blank_end]
    - the gestation period is [blank_start]short[blank_end] (in womb) then early stages of development occur in the marsupium
    -350 living species of marsupials in Australia, new guinea, south [blank_start]america[blank_end]
    - e.g. koala, kangeroo, possums
    - radiated as terrestrial herbivores, insectivores and carnivores
    - some glide
    - none [blank_start]fly[blank_end]
    - no [blank_start]marine[blank_end] > Yapok (S. America) is semi-aquatic
    1. AMarsupials
    2. Bmarsupium
    3. Cshort
    4. Damerica
    5. Efly
    6. Fmarine
  8. 8[blank_start]Eutheria[blank_end] = 'true beasts'
    - [blank_start]placental[blank_end] mammals
    - until gestation young nourished by the [blank_start]placenta[blank_end] and carried in the womb
    - 18-20 orders > largest = [blank_start]rodentia[blank_end]
    - varied in size form and ecology
    - includes [blank_start]grazers[blank_end] and browsers, terrestrial, aquatic and aerial groups
    1. AEutheria
    2. Bplacental
    3. Cplacenta
    4. Drodentia
    5. Egrazers
  9. 9[blank_start]Chiroptera[blank_end] = order of mammals, bats
    - "[blank_start]hand[blank_end] wings"
    - long fingers support a membrane of skin called [blank_start]patasium[blank_end] = forming a wing
    - capable of [blank_start]powered[blank_end] flight
    - hind limb modified for prolonged [blank_start]hanging[blank_end] and squeezing into crevices
    - knees faces [blank_start]backwards[blank_end] in contrast to other mammals
    - one digit can be locked by a tunnel for its [blank_start]tendon[blank_end]
    1. AChiroptera
    2. Bhand
    3. Cpatasium
    4. Dpowered
    5. Ehanging
    6. Fbackwards
    7. Gtendon
  10. 10Chiroptera can be split into
    - [blank_start]megachiroptera[blank_end] (big bats)
    - [blank_start]microchiroptera[blank_end] (small bats)
    1. Amegachiroptera
    2. Bmicrochiroptera

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Description
Animal Kingdom Quiz on Mammals, created by sophie waddington on 17/04/2018.
Language
English
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