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Biology : The Unity and Diversity of Life

Cecie Starr, Christine A. Evers; Lisa Starr

Chapter 16

Evidence of Evolution - all with Video Answers

Educators

Chapter Questions

01:09

Problem 1

The number of species on an island depends on the size of the island and its distance from a mainland. This statement would most likely be made by __________ .
a. an explorer
b. a biogeographer
c. a geologist
d. a philosopher

Aditya Sood
Aditya Sood
Numerade Educator
01:07

Problem 2

Evolution__________ .
a. is change in a line of descent
b. is the same as natural selection
c. is the goal of natural selection
d. explains the origin of life

Courtney Burson
Courtney Burson
Numerade Educator
01:51

Problem 3

The process in which environmental pressures result in the differential survival and reproduction of individuals of a population is called The process in which environmental pressures result in the differential survival and reproduction of individuals of a population is called
a. catastrophism
b. evolution
c. natural selection
d. genetics

Courtney Burson
Courtney Burson
Numerade Educator
00:38

Problem 4

The dinosaurs died __________out million years ago.

Aditya Sood
Aditya Sood
Numerade Educator
01:14

Problem 5

The bones of a bird's wing are similar to the bones in a bat's wing. This observation is an example of __________ .
a. uniformitarianism
b. evolution
c. comparative morphology
d. a lineage

Charles Machakwa
Charles Machakwa
Numerade Educator
00:55

Problem 6

A trait is adaptive if it A trait is adaptive if it
a. arises by mutation
b. increases fitness
c. is passed to offspring
d. occurs in fossils
a. arises by mutation
c. is passed to offspring
b. increases fitness
d. occurs in fossils

Dana Tsai
Dana Tsai
Numerade Educator
01:31

Problem 7

Darwin and Wallace proposed the hypothesis that__________ .
a. natural selection drives evolution
b. change occurs in a line of descent
c. new species arise after geologic events
d. dinosaurs perished in the aftermath of an asteroid impact

Courtney Burson
Courtney Burson
Numerade Educator
01:07

Problem 8

In which type of rock are you most likely to find a fossil?
a. basalt, a dark, fine-grained volcanic rock
b. limestone, composed of sedimented calcium carbonate
c. slate, a volcanically melted and cooled shale
d. granite, which forms by crystallization of magma cooling below Earth's surface

Charles Machakwa
Charles Machakwa
Numerade Educator
01:03

Problem 9

Which of the following is not a fossil?
a. Dried-out animal bones in a layer of desert sand
b. A patch of fur encased in amber
c. A woolly mammoth frozen in Arctic permafrost
d. Remains of an extinct whalelike animal
e. The impression of a plant leaf in sandstone
f. The wrinkly texture of shale imprinted with biofilms in sediments

Charles Machakwa
Charles Machakwa
Numerade Educator
01:21

Problem 10

The geologic time scale __________ .
a. explains plate tectonics
b. is a type of biological clock
c. correlates intervals of time with layers of sedimentary rock
d. is an example of uniformitarianism

Charles Machakwa
Charles Machakwa
Numerade Educator
01:18

Problem 11

If the half-life of a radioisotope is 20,000 years, then a
sample in which three-quarters of that radioisotope has
decayed is________ years old.
a. 15,000 b. 26,667 c. 30,000 d. 40,000

Prashant Bana
Prashant Bana
Numerade Educator
01:49

Problem 12

Did Pangea or Gondwana form first?

Kendrick Buford
Kendrick Buford
Numerade Educator
00:32

Problem 13

On the geologic time scale, life originated in the __________ .
a. Archean
b. Proterozoic
c. Phanerozoic
d. Cambrian

Aditya Sood
Aditya Sood
Numerade Educator
00:50

Problem 14

Forces that cause geologic change
include ________ (select all that are correct).
a. erosion
b. natural selection
c. volcanic activity
d. tectonic plate movement
e. wind
f. asteroid impacts

Mishal Gul
Mishal Gul
Numerade Educator
01:04

Problem 15

Match the terms with the most suitable description.
____lineage half-life
____fossils
____natural selection
____fitness
____uniformitarianism
____catastrophism
a. measured in terms of
reproductive success
b. geologic change occurs continuously
c. geologic change occurs in unusual major events
d. evidence of life in the
distant past
e. survival of the fittest
f. characteristic of a
radioisotope
g. a line of descent

Mishal Gul
Mishal Gul
Numerade Educator