Quiz 1 Flashcards
Violet stain that is basophilic and therefore commonly binds to DNA
Hematallin
red or pink stain that binds acidophilic substances like positively charged amino acids (lysine and arginine)
Eosin
Which organ would you find a pseudostratified columnar epithelium?
Trachea
Famous fossil shows a “transitional” state between modern day birds and non-avian dinosaurs.
Archaeopteryx
Evolutionary trait that has disappeared phenotypically but gene sequence often remains, but is inactive.
Ex. tail in humans
Atavism
3 advantages feathers may have given dinosaurs
camo
insulation
mating displays
Which order do chickens belong?
Galliformes
Largest avian order and includes song birds
Passeriformes
The larger the bird, the _______ its relative basal metabolic rate.
lower
Muscle that powers upstroke of wings.
Supracoracoideus
Muscle powers down stroke.
pectoralis major
Humans have ______ occipital condyles, while birds have _______.
2,1
Fusion of final caudal vertebrae that serve as an attachment site for rectrices (tail-feathers)
Phygostyle
Ossification or fused bone in birds, not present in animals.
Wishbone
What year was Archaeopteryx discovered?
1861