Chapter 19:
Changes in Species
Practice Test
1.
Why is the fossil record incomplete ?
a.
Most organisms decay after they die and do not become fossils.
b.
Most organisms live a very long time, so fossils are formed only rarely when they die.
c.
Many organisms die in the ocean and their remains pile up on the ocean bottom.
d.
Most organisms are eaten and digested so they leave no body parts to become fossils.
Hint
2.
What are nonfunctional DNA segments that are similar in sequence to a functioning gene?
a.
pseudogenes
b.
deletions
c.
exons
d.
introns
Hint
3.
Suppose a bird species can be found in two different habitats. On observation, it appears that the population living in a swamp doesn't crossbreed with the population living on a brushy slope. What is this an example of?
a.
polyploidy
b.
behavioral isolation
c.
geographical isolation
d.
ecological isolation
Hint
4.
What is a type of evolution in which change takes place at a slow, steady rate?
a.
punctuated equilibrium
b.
stasis
c.
gradualism
d.
adaptive radiation
Hint
5.
What is the development of numerous species from a common ancestor in a diverse environment?
a.
polyploidy
b.
adaptive radiation
c.
ecological isolation
d.
stasis
Hint
6.
A leopard frog from Massachusetts can mate with one from Oklahoma. A leopard frog from Oklahoma can mate with one from Arizona. But a leopard frog from Massachusetts doesn't recognize a leopard frog from Arizona as a potential mate. What is this an example of?
a.
ecological isolation
b.
behavioral isolation
c.
geographical isolation
d.
polyploidy
Hint
7.
What element found in sediments provides evidence that an asteroid or comet hit Earth 65 million years ago?
a.
iridium
b.
plutonium
c.
uranium
d.
radium
Hint
8.
Which of these provide direct evidence of evolution due to selective pressure?
a.
antibiotic resistance in bacteria
b.
pollination of flowers by bees
c.
long necks in giraffes
d.
height of human males
Hint
9.
Which of these is NOT a way in which fossils form?
a.
insect trapped in amber
b.
dinosaur footprints pressed into mud
c.
diatoms shells preserved in rock
d.
wood burned in a fire
Hint
10.
What is a type of evolution in which speciation occurs in spurts of relatively rapid change?
a.
gradualism
b.
punctuated equilibrium
c.
adaptive radiation
d.
stasis
Hint
