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Biol 1902 Test 1 Questions & Detailed Answers 2024
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Biol 1902 Test 1 Questions & Detailed Answers 2024
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Biol 1902 Test 1 Questions & Detailed Answers2024
Background matching - ANS When the animal's patterns generally match their
environment
(ex: American bittern - cattail marshes, fawns, grouse - forest floor)
Batesian mimicry - ANS A type of mimicry in which a harmless species (mimic)
looks like a species that is poisonous or otherwise harmful to predators (model).
# models > # mimics
Disruptive patterns - ANS strongly contrasting markings such as spots or stripes
break up an animal's outline
Coincident disruptive patterns - ANS When disruptive patterns are aligned by body
posture
(ex: American bittern or butterflies mimicking milk snake)
Bicolouration - ANS When the animal is lighter on one side of its body than the
other
(ex: whirligigs)
, Countershading - ANS protective coloration of some animals in which parts
normally in shadow are light and those exposed to the sky are dark.
Masquerade - ANS Matching the environment with shape and colour
(ex: angle winged butterfly)
Startle patterns - ANS bold and often colourful patterns that are exposed suddenly
to startle a predator; sometimes serve a deflection or distraction role
(ex: underwing moth)
Eyespots - ANS Patterns that mimic eyes used on some startle patterns. Make an
animal appear 'larger than life'
(ex: sphinx moth)
Startle structures - ANS Structures exposed suddenly to startle a predator
(ex: 'snake tongue' osmetarium of giant swallowtail caterpillar, wingtails, bright
tongue of five-lined skink)
Carapace (top) & plastron (bottom) - ANS turtle shell
aposematic coloration - ANS warning coloration
Sequestering - ANS Animals getting poison from plants
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