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WCB Exam Questions And 100% Correct Answers (A+)

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WCB Exam Questions And 100% Correct Answers (A+) Gondwana - Answer Paleozoic-Mesozoic supercontinent of South America, Africa, Madagascar, India, Australia, New Zealand, Antarctica biogeography - Answer geographical distribution of organisms fauna from Gondwana - Answer freshwater turtles cass...

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  • November 14, 2024
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WCB Exam Questions And 100% Correct Answers (A+)



Gondwana - Answer Paleozoic-Mesozoic supercontinent of South America, Africa,
Madagascar, India, Australia, New Zealand, Antarctica



biogeography - Answer geographical distribution of organisms



fauna from Gondwana - Answer freshwater turtles

cassowary

marsupials



fauna from first isolation (post-Gondwana) - Answer thylacines - tasmanian tiger,
carnivorous marsupial

horned turtles

carnivorous kangaroos - example of adaptive radiation



fauna from collision with Asia - Answer microhylid frogs

bird families

lizards & snakes

rodents



Pleistocene climate changes - Answer Cool and dry, last glacial peak -> cool and wet ->
warm and wet -> slightly cooler and drier



fauna from Pleistocene - Answer - tree kangaroo: adapted to arboreal life

- Herbert river (southern) vs Daintree ringtail possum (northern)

- skinks

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allopatric vicariance



fauna from arrival of people in Australia - Answer cane toads

cats

black rat

electric ant



main geological epochs of Atherton Tablelands - Answer • 420 MYA: Deep sea basin

• 420-360 MYA: Sediment Deposition

• 360 MYA: Compression and Upheaval

• 310-230 MYA: Granitic intrusions

• 100-65 MYA: Doming and fracturing - plain domed to form tablelands and eastern
edge fractured leaving steep face

• 65 MYA: Erosion of escarpment

• 3 - 5000 YA: Recent volcanoes Basaltic eruptions

◦ always happens: valleys fill with alluvium (loose clay, silt, or gravel deposited by a
river or stream)



timeline of land-zones in Atherton Tablelands - Answer 1. hills & lowlands on
metamorphic rock

2. granite intrusion

3. basalt plains & hills

valleys fill with alluvium (loose clay, silt, or gravel deposited by a river or stream)
happens all the time (erosion)



vicariance - Answer speciation due to geologic separation



allopatric speciation - Answer extrinsic factors preventing groups from mating (ie
geographic isolation)

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diatreme - Answer volcanic vent formed by the explosive escape of gases from collision
of magma and water that created enormous pressure



cinder cone - Answer steep, cone-shaped hill or small mountain made of volcanic ash,
cinders, and bombs piled up around a volcano's opening



maar - Answer ground water and magma collided resulting an explosion that left a
depression behind that got filled with groundwater (lake from an explosion)



Great Barrier Reef development - Answer - Pleistocene: glacial sea levels changes, cold
glacials and warm interglacials

- separation of Australian and pacific tectonic plates



monotremes - Answer subclass of mammal

- egg laying



marsupialia - Answer subclass of mammal

- short gestation time

- give birth at early stage of embryonic development (premature young)

- young develop in pouch or skin fold

- aboreal and terrestrial



3 subclasses of mammals - Answer monotremes

marsupialia

eutheria



eutheria - Answer subclass of mammal

- consisting of placental mammals

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