How do plants contribute to the water cycle?

through the evaporation of water from their roots

According to the concept of “latitudinal gradient,”which of the following happens?

Species richnessincreases toward the equator

Positive feedback loops _______.

are more common in natural systems altered by human actions

What does the term emergent properties describe?

characteristics evident only by looking at whole system

Which of the following statements about the importance of organisms in an ecosystem is true?

"engineers" can be as important as keystone species

How is community-based conservation different from more traditional approaches to conservation?

local people are involved with protecting the habitat

how have humans influenced the rate of extinction

current rate is 100 to 1000 time higher than in history

Ecosystems that convert solar energy to biomass rapidly ________.

are said to have high primary productivity

CITES tries to prevent extinction of species by

trying to prevent importation of endangered species

the sixth mass exrinction

is ongoing and has been caused by human disturbance

lish ing United nations The development of pharmaceutical products has been _____

aided by protection of ecosystem diversity

Net primary production in an ecosystem can be calculated by ______.

subtracting respiration from gross primary production

What causes “inbreeding depression”?

a)Populations have low geneticdiversity.

nitrogen tends to be a limiting factor for plant growth because

few organisms able to turn N gas into forms usable by organi

Conservation biology is different from other fields of science because _______.

its a goal-oriented science, with implicit ethical standards

which of the following best describe the cause of the dead zone in the Gulf of Mexico

fertilizer runoff from farms near Mississippi River drainage

A “biodiversityhotspot” is

a)an area that containsa large number of endemic species.

An umbrella species is best defined as _____

If protected will result protection of a large # species

a network of separate populations with interbreeding between

The Endangered Species Act is often a center of controversy because _____.

land use may be limited if threatened species are found

which best describes how energy and nutrients work in an ecosystem

energy flows through an ecosystem; nutrients cycle

which of the following about cloning organisms is true

cloning animals does not lead to genetic biodiversity

A contributing factor in the process of eutrophication is ______.

nitrogen and phosphate pollution

studbud

APES Ecosystems and Biodiversity

35 termsStudBud Administration65 plays

Imported from external platform

Flashcards35 cardsFPractice quizPHost liveL

Questions 35

Answers

1
How do plants contribute to the water cycle?
through the process of transpiration
through the evaporation of water from their roots
through the process of infiltration
through the process of condensation
2
According to the concept of “latitudinal gradient,”which of the following happens?
Species richnessdecreases over time
Species richnessincreases toward the equator
Species richnessdecreases toward the equator
a)Countries like Canadahave many more species than expected.
3
Positive feedback loops _______.
are relatively common in nature compared to negative feedbac
are more common in natural systems altered by human actions
result in stabilizing concentrations of a substance
may damage an ecosystem by causing reverse changes
4
What does the term emergent properties describe?
timing and season of emergence of organisms from dormancy
characteristics evident only by looking at whole system
characteristics of emerging vegetation such as the fireweed
emergence of flowers being changed by global climate change
5
Which of the following would destabilize an ecosystem?
negative feedback loops
homeostasis
stable populations
positive feedback loops
6
which of the following species would be most vulnerable to hunting by people
whales
small freshwater fish
frogs
cockroaches
7
Which of the following statements about the importance of organisms in an ecosystem is true?
small organisms are always more important
no one species is more important than others
"engineers" can be as important as keystone species
small organisms are less important that larger predators
8
How is community-based conservation different from more traditional approaches to conservation?
local people are involved with protecting the habitat
focuses on protecting whole communities vs 1 species
entire scientific community comes together to solve problems
It requires a large community of guards to patrol preserves
9
how have humans influenced the rate of extinction
humans have accelerated rate, but only since industrial rev
human activity caused 4th and 5th mass extinction
conservation efforts in the past 100 years have slowed rate
current rate is 100 to 1000 time higher than in history
10
Ecosystems that convert solar energy to biomass rapidly ________.
are said to have high primary productivity
are said to have high secondary productivity
have little vegetation
are usually found in cold, damp climates
11
CITES tries to prevent extinction of species by
trying to prevent importation of endangered species
raising endangered species for sale to cut out wild harvest
establish biosphere where people and end species live togeth
using United Nations troops to arrest poachers
12
Biodiversity does all of the following except
a)provide ecosystemservices.
a)maintain ecosystemfunction.
a)decrease foodsecurity.
a)provide aestheticbenefits.
13
the sixth mass exrinction
happened millions of years ago by an asteroid
is ongoing and has been caused by human disturbance
has not occurred
was caused by the sun being too far away from earth
14
lish ing United nations The development of pharmaceutical products has been _____
aided by protection of ecosystem diversity
attacked by people trying to protect endangered species
successful despite limited drugs coming from na resources
focused exclusively on creating new chemicals in the lab
15
The process that makes nitrogen available to plants by mutualistic and free-living bacteria
decomposition
ammonification
nitrogen fixation
putrification
16
some of the most ancient water on earth can be found in
the Great lakes
streams
oceans
aquifers
17
The structural sphere of Earth that is best described as the rocks and sediment is the
lithosphere
biosphere
atmosphere
hydrosphere
18
Net primary production in an ecosystem can be calculated by ______.
subtracting macronutrients from micronutrients
adding primary production to secondary production
subtracting respiration from gross primary production
multiplying productivity by secondary production
19
What causes “inbreeding depression”?
The number andvariety of species increase.
Genetically similarparents mate to produce superior offspri.
a)Populations have low geneticdiversity.
a)The species becomestoo large for the resource base.
20
In the carbon cycle carbon moves from the atmosphere into the living portion of cycle through
sedimentation
photosynthesis
respiration
burning of fossil fuels
21
nitrogen tends to be a limiting factor for plant growth because
there is little nitrogen available in the atomosphere
few organisms able to turn N gas into forms usable by organi
fossil fuel combustion uses the available nitrogen;
decomposers are unable to recycle nitrogen
22
Conservation biology is different from other fields of science because _______.
its a goal-oriented science, with implicit ethical standards
evidence may be squed to support ethics
conservation biologists ignore the scientific method
based only on computr simulations and ignores realworld data
23
which of the following best describe the cause of the dead zone in the Gulf of Mexico
gasoline spillage from oil refineries
fertilizer runoff from farms near Mississippi River drainage
increasing oil spills in the Gulf of Mexico
the farm practices of Louisiana
24
A “biodiversityhotspot” is
a)an area that containsnaturally high numbers of people.
a)an area that supportsfew, but large, species.
a)an area located nearthe equator.
a)an area that containsa large number of endemic species.
25
An umbrella species is best defined as _____
If protected will result protection of a large # species
like a large oak, will protect ecosystems from harm
people want to protect because it is attractive
if removed the community will collapse
26
a metapopulation
a population that is undergoing exponential growth
a population that spans two biomes
a really big population
a network of separate populations with interbreeding between
27
The largest reservoir of carbon in the carbon cycle is in sedimentary rock
living things
the atmosphere
fossil fuels
the oceans
28
The Endangered Species Act is often a center of controversy because _____.
it has not been successful
there are animals listed that are not worth saving
scientists want to make all species endangered
land use may be limited if threatened species are found
29
pharmaceuticals produce $150 billion and save many lives each year this is an example of
ecosystem services
drug traficing
conservation genetics
HMO services
30
which best describes how energy and nutrients work in an ecosystem
energy and nutrients are both recycled in ecosystems
energy and nutrients are the same thing
energy flows through an ecosystem; nutrients cycle
nutrients flow through an ecosystem; energy cycles
31
Which of the following is the major cause of extinction?
habitat loss
pollution
invasive species
overharvesting
32
The sum total of the planet's living organisms and abiotic systems is ________
the bioshpere
the biomass
a biome
an ecotone
33
Which group of organisms makes up the largest share ofthe planet’s biodiversity?
plants
fishes
insects
mammals
34
which of the following about cloning organisms is true
Cloning of mammals is not possible.
cloning animals does not lead to genetic biodiversity
Cloning is the best solution for increasing the biodiversit
Cloning always leads to viable organisms that can reproduce
35
A contributing factor in the process of eutrophication is ______.
lack of nutrients
acid rain
nitrogen and phosphate pollution
stable populations

APES Ecosystems and Biodiversity Flashcards | StudBud