POUL 1010E EXAM 1 2026 FULL PRACTICE
QUESTIONS AND ANSWERS
◉ chorion. Answer: outer membrane, avascular, has no function
◉ chorioallontis. Answer: respiration for embryo
◉ theropods. Answer: dinos with hollow bones, elongated forelimbs
◉ confuciusornis. Answer: earliest bird with aa horny beak
◉ Ornithurines. Answer: small and very bird-like, diversify into
most modern bird niches; advanced flight
◉ neornithes. Answer: modern birds; survive K-T extinction
◉ arboreal hypothesis. Answer: gliding down from tree branches
◉ cursorial hypothesis. Answer: flight evolved from birds chasing
prey with outstretched wings
◉ Aves. Answer: birds' Class
, ◉ convergent evolution. Answer: similar traits in unrelated
lineaages
◉ struthioniformes. Answer: ratites
◉ Palaeognathae. Answer: ratites and tinamous
◉ Neognathae. Answer: neoaves and galloanserae
◉ risk of extinction. Answer: population size, rate of population
decline, geographic area of distribution
◉ common birds. Answer: population over 500,000 and range over
997,145 km squared
◉ top 3 current threats to birds. Answer: agriculture, logging,
invasive species
◉ 24. Answer: number of critically endangered species threatened
by climate change
◉ T/F feathers initially evolved for flight. Answer: F
QUESTIONS AND ANSWERS
◉ chorion. Answer: outer membrane, avascular, has no function
◉ chorioallontis. Answer: respiration for embryo
◉ theropods. Answer: dinos with hollow bones, elongated forelimbs
◉ confuciusornis. Answer: earliest bird with aa horny beak
◉ Ornithurines. Answer: small and very bird-like, diversify into
most modern bird niches; advanced flight
◉ neornithes. Answer: modern birds; survive K-T extinction
◉ arboreal hypothesis. Answer: gliding down from tree branches
◉ cursorial hypothesis. Answer: flight evolved from birds chasing
prey with outstretched wings
◉ Aves. Answer: birds' Class
, ◉ convergent evolution. Answer: similar traits in unrelated
lineaages
◉ struthioniformes. Answer: ratites
◉ Palaeognathae. Answer: ratites and tinamous
◉ Neognathae. Answer: neoaves and galloanserae
◉ risk of extinction. Answer: population size, rate of population
decline, geographic area of distribution
◉ common birds. Answer: population over 500,000 and range over
997,145 km squared
◉ top 3 current threats to birds. Answer: agriculture, logging,
invasive species
◉ 24. Answer: number of critically endangered species threatened
by climate change
◉ T/F feathers initially evolved for flight. Answer: F