Environmental and Conservation Biology

What is the biggest problem with selecting a site for a preserve?

What is the biggest problem with selecting a site for a preserve?

What is the biggest problem with selecting a site for a preserve?

A) Only lands that are not useful to human activities are available for preserves.
B) Most of the best sites are inaccessible by land transportation, so making roads to

ppk   1501   1 Reply

duddy

The use of DDT as an insecticide in the United States has been outlawed since 19

The use of DDT as an insecticide in the United States has been outlawed since 19

The use of DDT as an insecticide in the United States has been outlawed since 1971, yet is still a problem for certain top-level carnivores in the United States. Which of the following choices best explains this apparent incongruity?

A) DD

ppk   1845   1 Reply

duddy

Agricultural lands frequently require nutrient augmentation because

Agricultural lands frequently require nutrient augmentation because

Agricultural lands frequently require nutrient augmentation because     

A) grains raised for feeding livestock must be fortified, and thus require additional nutrients.
B) nitrogen-fixing bacteria are not as plentiful in ag

ppk   3793   1 Reply

mrjohnston

Burning fossil fuels releases oxides of sulfur and nitrogen. These air pollutant

Burning fossil fuels releases oxides of sulfur and nitrogen. These air pollutant

Burning fossil fuels releases oxides of sulfur and nitrogen. These air pollutants can be responsible for

A) precipitation with a pH as low as 3.0.
B) calcium deficiency in soils.
C) the death of fish in lakes.
D) direct dama

ppk   3200   1 Reply

mrjohnston

This causes an increase in the intensity of UV radiation reaching Earth.

This causes an increase in the intensity of UV radiation reaching Earth.

This causes an increase in the intensity of UV radiation reaching Earth.

A) acid precipitation
B) greenhouse effect
C) depletion of ozone layer
D) eutrophication
E) biological magnification

ppk   2742   1 Reply

mrjohnston

This term refers to the reflecting and absorption of infrared radiation by atmos

This term refers to the reflecting and absorption of infrared radiation by atmos

This term refers to the reflecting and absorption of infrared radiation by atmospheric methane, carbon dioxide, and water.

A) eutrophication
B) acid precipitation
C) depletion of ozone layer
D) biological magnification

ppk   3061   1 Reply

mrjohnston

This is caused by excessive nutrient runoff into aquatic ecosystems.

This is caused by excessive nutrient runoff into aquatic ecosystems.

This is caused by excessive nutrient runoff into aquatic ecosystems.

A) greenhouse effect
B) acid precipitation
C) depletion of ozone layer
D) biological magnification
E) eutrophication

ppk   4579   1 Reply

mrjohnston

This causes extremely high levels of toxic chemicals in fish-eating birds.

This causes extremely high levels of toxic chemicals in fish-eating birds.

This causes extremely high levels of toxic chemicals in fish-eating birds.

A) greenhouse effect
B) acid precipitation
C) depletion of ozone layer
D) eutrophication
E) biological magnification

ppk   3839   1 Reply

mrjohnston

The biggest challenge that Costa Rica will likely face in its dedication to cons

The biggest challenge that Costa Rica will likely face in its dedication to cons

The biggest challenge that Costa Rica will likely face in its dedication to conservation and restoration in the future is

A) the pressures of its growing population.
B) its small size (as a country), which may not be able to maintain

ppk   1979   1 Reply

mrjohnston

Which of the following nations has become a world leader in the establishment of

Which of the following nations has become a world leader in the establishment of

Which of the following nations has become a world leader in the establishment of zoned reserves? 

A) China
B) Mexico
C) Costa Rica
D) Canada
E) United States

ppk   1352   1 Reply

duddy

Study the information above about quail habitats. Which of these represents the

Study the information above about quail habitats. Which of these represents the

Study the information above about quail habitats. Which of these represents the best quail habitat in terms of fragmentation and edge?

A) A      B) B      C) C      D) D      E) E

ppk   1147   1 Reply

duddy

Suppose you attend a town meeting at which some experts tell the audience that t

Suppose you attend a town meeting at which some experts tell the audience that t

Suppose you attend a town meeting at which some experts tell the audience that they have performed a cost-benefit analysis of a proposed transit system that would probably reduce overall air pollution and fossil fuel consumption. The analysis, howeve

ppk   2224   1 Reply

mrjohnston

One characteristic that distinguishes a population in an extinction vortex from

One characteristic that distinguishes a population in an extinction vortex from

One characteristic that distinguishes a population in an extinction vortex from most other populations is that

A) its habitat is fragmented.
B) its effective population size is much lower than its total population size.
C) it is

ppk   1760   1 Reply

duddy

The main cause of the increase in the amount of CO2 in Earth's atmosphere over t

The main cause of the increase in the amount of CO2 in Earth's atmosphere over t

The main cause of the increase in the amount of CO2 in Earth's atmosphere over the past 150 years is   

A) an increase in the amount of infrared radiation absorbed by the atmosphere.
B) increased worldwide primary production

ppk   1147   1 Reply

sarah!

Which of the following is a consequence of biological magnification?

Which of the following is a consequence of biological magnification?

Which of the following is a consequence of biological magnification?

A) Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers.
B) Populations of top-level predators are generally smaller

ppk   2682   1 Reply

bio_man

Which of the following strategies would most rapidly increase the genetic divers

Which of the following strategies would most rapidly increase the genetic divers

Which of the following strategies would most rapidly increase the genetic diversity of a population in an extinction vortex?

A) Introduce new individuals transported from other populations of the same species.
B) Control populations o

ppk   985   1 Reply

sarah!

Of the following statements about protected areas that have been established to

Of the following statements about protected areas that have been established to

Of the following statements about protected areas that have been established to preserve biodiversity, which one is not correct?

A) National parks are one of many types of protected areas.
B) Management of a protected area should be c

ppk   2246   1 Reply

duddy

Broeal Biome

Broeal Biome

What is the difference between the boreal biome comparing to all the other biomes? Which biomes comes the closest? Which biomes doesnt have nothing in common with the boreal biome?

emily   986   1 Reply

ppk

If the last remaining population of a particular bird species were all highly re

If the last remaining population of a particular bird species were all highly re

If the last remaining population of a particular bird species were all highly related, which type of diversity would be of greatest concern when planning to keep the species from going extinct?
A) genetic diversity
B) species diversity

ppk   3009   1 Reply

ppk

Which of the following is the true statement regarding species diversity and tax

Which of the following is the true statement regarding species diversity and tax

Which of the following is the true statement regarding species diversity and taxonomic diversity?
A) Species diversity measures the relative frequency of all alleles present in a species.
B) In taxonomic diversity, the evolutionary relati

ppk   3925   1 Reply

how_mendel

In a debate about the destruction of tropical wet forests, the arguments keep fo

In a debate about the destruction of tropical wet forests, the arguments keep fo

In a debate about the destruction of tropical wet forests, the arguments keep focusing on
biodiversity and how this affects the animals themselves, as well as the ecosystem. What is one direct benefit of biodiversity to humans that you can argue

ppk   1956   1 Reply

ppk

How can biodiversity affect the way we decontaminate industrial sites?

How can biodiversity affect the way we decontaminate industrial sites?

How can biodiversity affect the way we decontaminate industrial sites?
A) Bacteria have been found to be able to detoxify certain chemicals; perhaps there are more.
B) Trees produce sawdust, which can be used to soak up chemicals.
C

ppk   2965   1 Reply

Mike146

Ecosystems services include processes that increase the quality of the abiotic e

Ecosystems services include processes that increase the quality of the abiotic e

Ecosystems services include processes that increase the quality of the abiotic environment. Which of the following processes would not fall under this category?
A) Keystone predators have a marked effect on species diversity.
B) Green pla

ppk   1662   1 Reply

ppk

Environmental sequencing has brought to light what crucial finding?

Environmental sequencing has brought to light what crucial finding?

Environmental sequencing has brought to light what crucial finding?
A) Genetic diversity is highest in the most complex ecosystems.
B) Genetic diversity is very difficult to detect in small ecosystems.
C) Even the world's simpl

ppk   888   1 Reply

ppk

Approximately how many species have we described out of the species alive today?

Approximately how many species have we described out of the species alive today?

Approximately how many species have we described out of the species alive today?
A) We have described about half of the species on Earth.
B) We have described almost all of the species on Earth.
C) Apart from the tropics, we have de

ppk   2492   1 Reply

bio_man

During the inventory of bacterial genes present in the Sargasso Sea, a research

During the inventory of bacterial genes present in the Sargasso Sea, a research

During the inventory of bacterial genes present in the Sargasso Sea, a research team concluded that at least 1800 bacterial species were discovered. Based on what you know about this area, what would expect to see in coral reef waters?
A) sligh

ppk   2691   1 Reply

ppk

Erwin and Scott used an insecticidal fog to knock down insects from the top of a

Erwin and Scott used an insecticidal fog to knock down insects from the top of a

Erwin and Scott used an insecticidal fog to knock down insects from the top of a L. seemannii tree. The researchers identified over 900 species of beetles among the individuals that fell. Erwin also projected that this entire tree is host to about 60

ppk   2779   1 Reply

bio_man

While traveling in the Alps, you come across a butterfly that you cannot identif

While traveling in the Alps, you come across a butterfly that you cannot identif

While traveling in the Alps, you come across a butterfly that you cannot identify. You quickly find out that it is a new species. Which of the following is not a step in understanding the biodiversity of this new species?
A) naming and describi

ppk   952   1 Reply

bio_man

Hypothesis: Productivity increases with species richness because certain species

Hypothesis: Productivity increases with species richness because certain species

Hypothesis: Productivity increases with species richness because certain species or functional groups facilitate the growth of other species by providing them with nutrients, partial shade, or other benefits. In looking at the data in Figure 55.4, ho

ppk   2213   1 Reply

bio_man

Which of the following statements regarding species diversity is false?

Which of the following statements regarding species diversity is false?

Which of the following statements regarding species diversity is false?
A) More than 99% of the species known to science are now extinct.
B) As much as 20% of the world's biodiversity will be lost during the next 50 years.
C) T

ppk   2617   1 Reply

mikael

Which of the following statements regarding extinction is false?

Which of the following statements regarding extinction is false?

Which of the following statements regarding extinction is false?
A) Only certain species are immune from extinction.
B) Species are vanishing today faster than at any other time in Earth's history.
C) Extinction occurs whether

ppk   5452   1 Reply

bio_man

Which of the following criteria have to be met in order for a species to qualify

Which of the following criteria have to be met in order for a species to qualify

Which of the following criteria have to be met in order for a species to qualify as invasive?
A) endemic to the area, spreads rapidly, and eliminates foreign species
B) introduced to a new area, spreads rapidly, and eliminates native spec

ppk   2364   1 Reply

bio_man

Researchers have been studying a rare population of 87 voles in an isolated area

Researchers have been studying a rare population of 87 voles in an isolated area

Researchers have been studying a rare population of 87 voles in an isolated area. Ten voles from a larger population were added to this isolated population. Besides having 10 additional animals, what benefits are there to importing individuals?

ppk   2724   1 Reply

biology101

You discover, in your massive 2000-hectare forest, a species of bat that is not

You discover, in your massive 2000-hectare forest, a species of bat that is not

You discover, in your massive 2000-hectare forest, a species of bat that is not found anywhere else. Which of the following agencies would not be involved in helping you formulate a plan to conserve this species?
A) U.S. Forest Service
B)

ppk   1081   1 Reply

lewis

Which of the following is not likely a mechanism for biodiversity increasing pro

Which of the following is not likely a mechanism for biodiversity increasing pro

Which of the following is not likely a mechanism for biodiversity increasing productivity?
A) Resource use is more efficient.
B) Certain species facilitate the growth of other species.
C) More species means greater biomass.
D)

ppk   1254   1 Reply

lewis

The habitat of your bat population (question 34) is designated as a protected ar

The habitat of your bat population (question 34) is designated as a protected ar

The habitat of your bat population (question 34) is designated as a protected area. What, if any, would be an advantage of removing a small number of bats and placing them in a zoo?
A) Removing bats would do too much harm to the original popula

ppk   1111   1 Reply

star

What is the main purpose of the wildlife corridor?

What is the main purpose of the wildlife corridor?

What is the main purpose of the wildlife corridor?
A) to slow down the introduction of new individuals of a species
B) to slowly introduce a species to a new preserve
C) to facilitate the transfer of individuals back and forth betwe

ppk   3850   1 Reply

star

Lobsters can navigate back home at night using Earth's magnetic field. (True or false?)

Lobsters can navigate back home at night using Earth's magnetic field. (True or false?)

Lobsters can navigate back home at night using Earth's magnetic field. Is this statement a proximate cause or an ultimate cause?
A) proximate cause
B) ultimate cause

ppk   1198   1 Reply

lewis

In testing a hypothesis that "territorial defense in European robins is a fixed

In testing a hypothesis that "territorial defense in European robins is a fixed

In testing a hypothesis that "territorial defense in European robins is a fixed action pattern that is released by the sight of orange feathers," researchers found that robins defended their territory by attacking anything that was of simil

ppk   2852   1 Reply

lewis

How would you classify the genetic basis for most behavioral traits in the anima

How would you classify the genetic basis for most behavioral traits in the anima

How would you classify the genetic basis for most behavioral traits in the animal kingdom?

ppk   2098   1 Reply

lewis