A decrease in secondary consumers may directly lead to

An increase in primary consumers

Both respiration and photosynthesis

Ecological Succession is best described as

The gradual change in a plant community over time

Autotrophs can do which of the following?

Convert inorganic to organic molecules

A trade-off considers

The pros and cons from each point of view

A "keystone" species can best be described as

An essential population in a food web

An invasive species may

Outcompete native species for limited resources

Food Pyramids end at 3rd of 4th level feeders because

There is no energy left to support another population

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Ecology and Human Impact

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Questions 30

Answers

1
Organic molecules are essetially
Oxygen Molecules
Glucose Molecules
Water Molecules
Carbon Dioxide Molecules
2
Habitat destruction results from
Ecosystem stability
Deforestation
An increase of biodiversity
CFC's from plastics
3
A renewable source of energy is
Less environmentally friendly
usually less expensive
Should not be used at all
More Environmentally friendly
4
Overfishing may lead to
A decrease in food for humans
the disruption of a food web
a more stable food chain
An increase in biodiversity
5
Many populations interacting with one another is
A species
A community
An ecosystem
An invasive species
6
A specific role in the environment is best definied as
A community
A Niche
A habitat
A population
7
An invasive species is one that
usually dies out
Has many limited resources
Has few natural predators
Has many natural predators
8
National Parks were created in order to
Eliminated unwanted species
Decrease Biodiversity
Introduce a new species
Preserve Biodiversity
9
A decrease in secondary consumers may directly lead to
A decrease in primary consumers
An increase in producers
An increase in primary consumers
An increase in tertiary consumers
10
Autotrophs carry out
Respiration only
Both respiration and photosynthesis
Photsynthesis only
Neither respiration or photosynthesis
11
Ecological Succession is best described as
The rapid change in a plant community over time
The gradual change in a plant community over time
The change in an animal species over time
The change in limited resources over time
12
Autotrophs can do which of the following?
Use CO2 as a food source
Use inorganic molecules for food
Convert organic into inorganic molecules
Convert inorganic to organic molecules
13
A trade-off considers
The pros from one point of view
The pros and cons from each point of view
The pros and cons from one side only
The cons from one point of view
14
The term for non-living parts of the environment is
Biosynthetic
Abiotic
Biofuels
Biotic
15
Living factors in an ecosystem are best defined as
Biology
Biosphere
Biotic
Biofuels
16
All of the red foxes in a forest are known as
The Biosphere
A population
A community
An Ecosystem
17
Ozone depletion is primarily caused by
GDG's
CFR's
CFA's
CFCs'
18
Which type of radiation is blocked out by the Ozone Layer?
Radio Waves
Infrared
UV Radiation
Sunlight
19
A "keystone" species can best be described as
An invasive species
An unimportant population in the food web
An essential population in a food web
An unwanted population
20
What do arrows in a Food Chain Show?
Flow of Energy
Who is the predator
Who eats who
Who is the prey
21
A single organism is best defined as
A community
An Individual
A population
The Biosphere
22
Deforestation results in
An increase in ozone depletion
An increase in oxygen
An increase in methane
An increase in carbon dioxide
23
Which part of the atmosphere contains the Ozone Layer?
The stratosphere
The Thermosphere
The mesosphere
The troposphere
24
Photosynthesis converts the sun's energy into
Inorganic Molecules
Carbon Dioxide
Water
Organic Molecules
25
An invasive species may
Outcompete native species for limited resources
Become extinct in its new environment
Have many predators
Require more of the suns' energy
26
Global Warming is most closely associated with
Carbon Dioxide
Infrared Radiation
Oxygen
Methane
27
Food Pyramids end at 3rd of 4th level feeders because
There are no animals big enough to prey on them
There are no resources left to support another population
There is no energy left to support another population
There is no one to eat them
28
Nonrenewable sources of energy include
Coal, gas, and hydropower
Gas, oil, and wind
Oil, gas, and solar
Coal, oil and gas
29
The diagram showing the most realistic relationships among organisms is
A Food Chain
A Food Pyramid
A Food Web
Autotrophs
30
Which factor increases as it makes its way up a food chain?
the amount of energy
the amount of pesticides
The amount of biomass
the number of organisms

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