Vertebrate Anatomy 1st (test bank)
Name three characteristics of amniotes
1) amniotic sac
2) waterproof skin
3) ribs (ventilation of lungs)
Bony fish have a/an ________ that covers their gills
Operculum
_____ secrete slime from their mucus glands as protection
Hagfishes
Organisms with bodies that are warmed by heat generated by metabolism. This
heat is usually used to maintain a relatively stable body temperature higher than
that of the external environment. What is this called?
Endothermy
Compare between horns and antlers. Are these structures homologous or
analogous?
Analogous
What is the difference between homology and analogy?
Homology is similarity due to shared ancestry
Analogy is similarity due to convergent evolution
In mammals the _____ is homologous to the amniotic sac
Placenta
All chordates share the following three characteristics (choose 3/5)
, Notochord, dorsal hollow nerve cord, pharyngeal pouches, endostyle, postanal
tail
Example of nonvertebrate craniate
Hagfish
____ is an example of non amniote tetrapod
Frog/toad/salamander/newt/caecilian/Necterus (choose any amphibian)
_____ is the most numerous group of vertebrates
Fishes (pisces)
____ is a group of egg_laying mammals
Monotremata
_____ are members of group cephalochordata
Amphioxus (lancelet)
When an animal in the adult stage retains a feature from the larval stage this is
termed
Paedomorphosis
In sharks and bony fishes, the propulsion fin is the ____ fin
A) caudal
B) pelvic
C) pectoral
D) dorsal
E) ventral
A) caudal
Name three characteristics of amniotes
1) amniotic sac
2) waterproof skin
3) ribs (ventilation of lungs)
Bony fish have a/an ________ that covers their gills
Operculum
_____ secrete slime from their mucus glands as protection
Hagfishes
Organisms with bodies that are warmed by heat generated by metabolism. This
heat is usually used to maintain a relatively stable body temperature higher than
that of the external environment. What is this called?
Endothermy
Compare between horns and antlers. Are these structures homologous or
analogous?
Analogous
What is the difference between homology and analogy?
Homology is similarity due to shared ancestry
Analogy is similarity due to convergent evolution
In mammals the _____ is homologous to the amniotic sac
Placenta
All chordates share the following three characteristics (choose 3/5)
, Notochord, dorsal hollow nerve cord, pharyngeal pouches, endostyle, postanal
tail
Example of nonvertebrate craniate
Hagfish
____ is an example of non amniote tetrapod
Frog/toad/salamander/newt/caecilian/Necterus (choose any amphibian)
_____ is the most numerous group of vertebrates
Fishes (pisces)
____ is a group of egg_laying mammals
Monotremata
_____ are members of group cephalochordata
Amphioxus (lancelet)
When an animal in the adult stage retains a feature from the larval stage this is
termed
Paedomorphosis
In sharks and bony fishes, the propulsion fin is the ____ fin
A) caudal
B) pelvic
C) pectoral
D) dorsal
E) ventral
A) caudal
