Exam 29: Vertebrate Evolution

A) respiration by gills.
B) respiration through the skin.
C) separation of lung/gill and systemic (body) circulation.
D) development of the tail for propulsion.
E) the leathery waterproof egg shell.

Correct Answer

verified

Show Answer

A) notochord,vertebrae,jaws,bony skeleton,lungs,4 limbs and an amniotic egg
B) notochord,jaws,vertebrae,bony skeleton,lungs,4 limbs and an amniotic egg
C) notochord,vertebrae,jaws,cartilaginous skeleton,lungs,4 limbs and an amniotic egg
D) vertebrae,jaws,notochord,bony skeleton,lungs,4 limbs and an amniotic egg
E) notochord,vertebrae,jaws,4 limbs,bony skeleton,lungs,and an amniotic egg

Correct Answer

verified

Show Answer

A) mammary gland.
B) egg.
C) pouch.
D) placenta.
E) marsupium.

Correct Answer

verified

Show Answer

A) radial symmetry
B) segmentation
C) extreme cephalization
D) closed circulation
E) coelom

Correct Answer

verified

Show Answer

A) segmentation.
B) jaws.
C) a notochord that develops into a vertebral column.
D) amniotic eggs.
E) exoskeletons

Correct Answer

verified

Show Answer

A) endothermic,gills and scales
B) ectothermic,smooth nonscaly skin and bony skeleton
C) cartilaginous or bony endoskeleton,gills and scales
D) bony exoskeleton,gills and scales

Correct Answer

verified

Show Answer

A) using spermatophores.
B) externally in water.
C) internally by copulation.
D) just like frogs.

Correct Answer

verified

Show Answer

A) Cambrian,Paleozoic
B) Ordovician,Paleozoic
C) Mesozoic,Cretaceous
D) Paleozoic,Cambrian

Correct Answer

verified

Show Answer

A) amphibians have smooth non-scaly skin,whereas reptiles are covered with scales and their skin is dry.
B) all reptiles respire by the use of lungs,while amphibians use small lungs supplemented by cutaneous respiration.
C) amphibian eggs are laid in water,but reptiles do not require water for reproduction.
D) reptiles are ectothermic,while amphibians are endothermic.

Correct Answer

verified

Show Answer

A) coelacanths.
B) therapsids.
C) lampreys.
D) archaeopteryx.

Correct Answer

verified

Show Answer

A) segmentation,a dorsal hollow nerve cord,pharyngeal pouches,and an amniotic egg.
B) a dorsal hollow nerve cord,a notochord,bilateral symmetry,and mammary glands.
C) bilateral symmetry,segmentation,a well-developed coelom,and limbs.
D) a well-developed coelom,pharyngeal pouches,a notochord,and jaws.
E) pharyngeal pouches,a dorsal nerve cord,a notochord,and a postanal tail.

Correct Answer

verified

Show Answer

Correct Answer

verified

Show Answer

A) scales
B) lateral line system for detecting prey
C) endothermy
D) ectothermy
E) swim bladder

Correct Answer

verified

Show Answer

Correct Answer

verified

Show Answer

A) leathery outer covering and an excurrent siphon
B) gill slits and bilateral symmetry
C) sexual reproduction and complete digestive system
D) sessile adult stage and aquatic lifestyle
E) leathery outer covering and sessile adult stage

Correct Answer

verified

Show Answer