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TRANSCRIPT
Mammalia Jeopardy
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General Mammals
Marsupials & Monotremes
Placental Mammals
Mammalian Orders
Pictures
Final Jeopardy
What three types of glands do all mammals possess?
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Scent glands, sweat glands, & mammary
glands
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Compared to other vertebrates, mammals have heightened senses in
what two areas?
5
Hearing & smell
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The umbilical cord and placenta in placental mammals
replace what parts of the amniotic egg?
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Allantois, Albumen, Yolk, and Chorion
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Why do zoologists think that the first mammals were nocturnal predators?
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Lack of color vision, exceptional hearing & smell, and endothermy in most mammals hint at a nocturnal
existence.
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Synapsid Reptiles
Mammals
Thermoregulation
Limbs under body
Ribs reduced & appearance of hair
Molars & glands
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Synapsid Reptiles
Mammals
Limbs under body
Pelycosaurs
Therapsids
Cynodonts
Molars & glands
Ribs reduced & appearance of hair
Thermoregulation
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What two animals are the only monotremes
on the planet?
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Platypus & Spiny Echidna
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Name 4 marsupials other than the opossum.
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Kangaroo, wallaby, wombat, koala, sugar
glider, etc…
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What are three unique attributes of monotremes not seen in other
mammals?
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Cloaca/egg laying, no nipples, & electroreception
Describe how the present distribution of marsupials and monotremes on the earth came
to be.
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191. Monotremes & marsupials first developed during the Triassic and migrated across Pangaea2. Australia, Antarctica, and India broke away from Pangaea3. Placental mammals developed in Laurasia4. Antarctica froze and India collided with Asia flooding it with placental mammals5. Australia remained habitable and isolated from the rest of the world
What is the anatomical result of the necessity of
marsupials to crawl from the vagina to the
pouch to complete development?
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There are no marsupials with hooves, wings, or flippers.
They must have forearms that are able to grip in order to
climb into the pouch
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What is the evolutionary advantage that placental mammals have over their
marsupial and monotreme cousins?
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They can carry their young internally until
they are fully developed
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What are the two largest Orders of placental
mammals that make up around 60% of all
mammalian species?
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Rodentia & Chiroptera
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How does one tell the difference between dolphins and porpoises?
27Dolphin Porpoise
Teeth Conical Spade-like
Dorsal Fin Hooked Triangular
Face Beak No Beak
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Describe how a cow digests its food as it passes through the
ruminant stomach?
Rumen & ReticulumOmasum
Abomasum
291. Grass is eaten and moved into the rumen and then
reticulum to pick up bacteria capable of digesting cellulose
2. Grass is regurgitated as cud and chewed to help bacteria break down cellulose
3. Cud is re-swallowed and moved to omasum where water and minerals are extracted
4. Cud moves to abomasum where normal acidic digestion takes place
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Which mammalian Order is considered to be the
simplest placental mammal Order?
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Insectivora
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Elephants are the sole members of which Order of mammals (think about the
nose)
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Proboscidea
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What are the two mammalian Orders that are considered to be completely
aquatic
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Cetacea & Sirenia
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Describe the difference between Artiodactyls and Perissodactyls and
explain why there are so few Perissodactyls left on the planet
39Artiodactyls – ruminant stomachs and even-toed hoovesPerissodactyls – hindgut fermenters and odd-toed hooves
Due to climate change, the food the Perissodactyls ate went away leaving mostly the low-grade grasses that Artiodactyls are able to eat. Only a few Perissodactyls were able to adapt and survive until today.
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What is the difference between Simians and Prosimians and what is the difference
between New-world and Old-world monkeys? (Give two examples of animals in
each category)
41Prosimians – primitive, nocturnal, solitary primates such as lemurs & tarsiers
Simians – advanced, diurnal, social primates such as monkeys and apes
New-world – flat-nosed monkeys with prehensile tails that live in the Americas such as howler and spider monkeys
Old-world – narrow-nosed monkeys with vestigial or absent tails that live in Africa and Asia such as proboscis monkeys, baboons, and the apes
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Shrew Capybara
White RhinoAsian Elephant
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Sea Lion Fossa
DugongWombat
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Pangolin Aardvark
LorisBushbaby
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Tapir Echidna
MandrillCivet
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Hyrax Tarsier
ColugoCapuchin
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Complete the flow-chart that organizes the Suborders and Superfamilies of
Order CarnivoraSuborder Superfamily Example
Caniformia Canoidea
--------------------- Ursoidea
--------------------- Skunks, weasels, & raccoons
--------------------- Seals, sea lions, & walruses
Feloidea Cats
--------------------- Viverroidea
--------------------- Hyena, mongoose, & fossa
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Suborder Superfamily Example
Caniformia Canoidea Dogs, foxes, & wolves
--------------------- Ursoidea Bears
--------------------- Musteloidea Skunks, weasels, & raccoons
--------------------- Pinnipedia Seals, sea lions, & walruses
Feliformia Feloidea Cats
--------------------- Viverroidea Civets
--------------------- Herpestoidea Hyena, mongoose, & fossa