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Biology Concepts and Applications

Cecie Starr, Christine A. Evers, Lisa Starr

Chapter 44

Human Effects on the Biosphere - all with Video Answers

Educators


Chapter Questions

02:11

Problem 1

A(n) ______________ species has population levels so low it is at great risk of extinction in the near future.
a. endemic
b. endangered
c. threatened
d. indicator

Kai Medina
Kai Medina
Numerade Educator
03:13

Problem 2

Species are threatened by habitat ____________ .
a. fragmentation
b. degradation
c. destruction
d. all of the above

Kai Medina
Kai Medina
Numerade Educator
01:13

Problem 3

Deforestation ___________ .
a. increases mineral runoff from soil
b. decreases local temperature
c. increases local rainfall
d. all of the above

Kai Medina
Kai Medina
Numerade Educator
00:42

Problem 4

Sulfur dioxide released by coal-burning power plants contributes to ______________ .
a. ozone destruction
b. sea level rise
c. acid rain
d. desertification

Kai Medina
Kai Medina
Numerade Educator
00:44

Problem 5

The "hole" in the ozone layer is most pronounced in _________ over ___________ .
a. fall; the Arctic
b. fall; the equator
c. spring; Antarctica
d. spring; the equator

Kai Medina
Kai Medina
Numerade Educator
01:11

Problem 6

An increase in the size of the ozone hole would be expected to ____________ .
a. increase skin cancers
b. acidify the sea
c. melt more glaciers
d. increase atmospheric $\mathrm{CO}_{2}$

Kai Medina
Kai Medina
Numerade Educator
01:50

Problem 7

Ocean currents have caused a large amount of plastic to accumulate in the __________ .
a. North Pacific Ocean
b. South Atlantic Ocean
c. Gulf of Mexico
d. Indian Ocean

Kai Medina
Kai Medina
Numerade Educator
00:56

Problem 8

Global climate change is causing ______________ .
a. a decrease in sea level
b. glacial melting
$c_{*}$ acid rain
d. all of the above

Kai Medina
Kai Medina
Numerade Educator
00:54

Problem 9

The Montreal Protocol banned use of ___________ which contribute(s) to destruction of the ozone layer.
a. DDT
b. CFCs
c. fossil fuels
d. sulfur dioxides

Kai Medina
Kai Medina
Numerade Educator
01:28

Problem 10

A highly threatened region that is home to unique species is a(n) ___________ .
a. ecoregion b. biome c. hot spot d. community

Billy Huggins
Billy Huggins
Numerade Educator
02:01

Problem 11

Biodiversity refers to all except _____________.
a. genetic diversity
b. species diversity
c. ecosystem diversity
d. geographic diversity

Kai Medina
Kai Medina
Numerade Educator
01:47

Problem 12

Restoring a marsh that has been damaged by human activities is an example of ____________ .
a. biological magnification
b. bioaccumulation
c. ecological restoration
d. globalization

Kai Medina
Kai Medina
Numerade Educator
01:06

Problem 13

Individuals help sustain biodiversity by ____________ .
a. reducing resource consumption
b. reusing materials
c. recycling materials
d. all of the above

Kai Medina
Kai Medina
Numerade Educator
02:45

Problem 14

Match the terms with the most suitable description.
a. good up high; bad nearby
b. tree loss alters rainfall pattern and is difficult to reverse
c. can increase dust storms
d. evolved in one region and remains there alone
e. coal-burning is major cause
f. release of pollutant in many areas
$g .$ has unique threatened species
h. cause of rising sea level
i. genetic, species, and ecosystem diversity
hot spot
ozone
biodiversity
acid rain
endemic species
nonpoint source of pollution
global climate change
deforestation
desertification

Billy Huggins
Billy Huggins
Numerade Educator