BIOL 1442 Ch 29 Review Questions

Which of the following statements about common features of chordates is true?

a) The dorsal hollow nerve cord is part of the chordate CNS

b) In vertebrate fishes, the pharyngeal slits become the gills

c) Humans are not chordates because humans do not have a tail

d) Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column

a) The dorsal hollow nerve cord is part of the chordate CNS

Which of the following statements about the parts of an amniotic egg are false?

a) The allantois stores nitrogenous waste and facilitates respiration

b) The chorion facilitates gas exchange

c) The yolk provides food for the growing embryo

d) The amniotic cavity is filled with albumen

d) The amniotic cavity is filled with albumen

Members of the order Testudines have an anapsid-like skill without obvious temporal fenestrae. However, molecular studies indicate that turtles descended from a diapsid ancestor. Why might this be the case?

The ancestor of modern testudines may at one time have had a second opening in the skull, but over time this might have been lost

Which of the following is not contained in phylum chordata?

a) Cephalochordata

b) Echinodermata

c) Urochordata

d) Vertebrata

b) Echinodermata

Which group of invertebrates is most closely related to vertebrates?

a) cephalochordates

b) echinoderms

c) arthropods

d) urochordates

a) cephalochordates

Hagfish, lampreys, sharks, and tuna are all chordates that can also be classified into which group?

Craniates

Members of Chondrichthyes differ from members of Osteichthyes by having a

cartilaginous skeleton

Members of Chondrichthyes are thought to be descended from fishes that had

a bony skeleton

A marine biologist catches a species of fish she has never seen before. Upon examination, she determines that the species has a predominantly cartilaginous skeleton and a swim bladder. If its pectoral fins are not fused with its head, to which category of fish does this specimen belong?

Osteichthyes

Which of the following is not true of Acanthostega?

a) it was aquatic

b) it had gills

c) it had four limbs

d) it laid shelled eggs

d) it laid shelled eggs

Frogs belong to which order?

Anura

During the Mesozoic period, diapsids diverged into

lepidosaurs and archosaurs

Squamata includes

lizards and snakes

Which of the following reptile groups gave rise to modern birds?

a) lepidosaurs

b) pterosaurs

c) anapsids

d) archosaurs

d) archosaurs

A bird or feathered dinosaur is

Archaeopteryx

Which of the following feather types helps to reduce drag produced by wind resistance?

a) flight feathers

b) primary feathers

c) secondary feathers

d) contour feathers

d) contour feathers

Eccrine glands produce

sweat

Monotremes include

platypuses

The evolution of which of the following features of mammals is hardest to trace through the fossil record?

a) jaw structure

b) mammary glands

c) middle ear structure

d) development of hair

b) mammary glands

Which of the following is not an anthropoid?

a) lemurs

b) monkeys

c) apes

d) humans

a) lemurs

Which of the following is part of a clade believed to have died out, leaving no descendants?

a) Paranthropus robustus

b) Australopithecus africanus

c) Homo erectus

d) Homo sapiens sapiens

a) paranthropus robustus

Which of the following human traits is not a shared characteristic of primates?

a) hip structure supporting bipedalism

b) detection and processing three color vision

c) nails at the end of each digit

d) enlarged brain area associated with vision, and reduced area association with smell

b) detection and processing of three color vision