Shared Flashcard Set

Details

CH 1 to 4
Environmental Biology
97
Biology
Undergraduate 2
09/23/2010

Additional Biology Flashcards

 


 

Cards

Term

 

 

Which of the following is part of the environment?

Definition

 

 

bacteria

(b) oxygen

(c) sun

(d) rocks

(e) all the above

 

Term

 

 

All of earth’s natural resources and natural services make up its _________

Definition

 

 

(d) natural capital

Term

 

 

 

The primary source of earth’s natural capital is ______.

Definition

 

 

the sun

Term

 

 

 

 

Which of the following is an example of a natural service provided by earth?

Definition

 

 

 

 

(b) nutrient cycling

Term

 

 

 

 

 

Which of the following is an example of a natural resource provided by earth?

Definition

 

 

a rainforest

Term

 

 

 

 

Living sustainably, means living off of earth’s _______, not its natural capital.

Definition

 

 

 

 

natural income

Term

 

 

 

Which of the following would be a good practice of an environmentally sustainable society?

Definition

(a) Living off of natural income, not earth’s natural capital

(b) Meeting the basic needs of current populations, without compromising the ability of future generations to meet their basic needs

(c) Consuming resources at a rate that is in equilibrium to the rate of resource production

(d) All of the above

 

Term

 

 

 

What does GDP stand for?

Definition

 

 

 

Gross Domestic Product

Term

 

 

 

What does ‘per capita GDP’ mean?

Definition

 

 

 

Economic growth per person

Term

 

 

 

A nation’s economic growth is measured by its

Definition

 

 

 

per capita GDP

Term

 

 

 

Developed Country : Moderately Developed County : Developing Country

Definition

 

 

 

Japan : India : Congo

Term

 

 

 

What are some of the characteristics of a developing country?

Definition

 

 

 

extreme poverty, disease,

scarcity of key resources, dysfunctional government

Term

 

 

Any substance that causes a physical or chemical change to the environment is a(n)

Definition

 

 

 

pollutant

 

Term

 

 

 

Which of the following is an example of a point source pollutant?

Definition

 

 

 

greenhouse gasses from the smokestack of a coal burning power plant

Term

 

 

T

he current emphasis of society is on protecting species. What is a more sustainable way of thinking about preserving biodiversity

Definition

 

 

 

protect more natural habitat

Term

 

 

 

The current emphasis of society is on waste disposal through burning and burying trash. What is a more sustainable way of thinking about waste

Definition

 

 

 

waste prevention by reducing, reusing, and recycling materials

Term

 

 

The current emphasis of society is on resource use, which depletes earth’s natural capital. What is a more sustainable way of thinking about resource use

Definition

 

 

 

consuming natural income and protecting natural capital

Term

 

 

 

What factor(s) cause a shift in human activity towards more sustainable living?

Definition

 

 

 

laws, taxes, fines,fees

 

Term

 

 

 

Which of the following is NOT a cause of earth’s environmental problems?

Definition

 

 

 

lack of full-cost pricing

Term

 

 

 

Why is poverty a cause of environmental problems?

Definition

 

 

because poverty forces people to exploit natural capital in order to obtain their basic needs

 

 

because poverty causes population growth since the poor have children as a matter of survival

Term

 

 

Why is it difficult to implement full-cost pricing for resource use?

Definition

 

a) quantifying the monetary value of the environment has not been well established

(b) public resists increasing costs

(c) government provides subsidies or tax-breaks to make the cost of resources more affordable

Term

 

 

The smallest unit of matter, which retains the properties of its element is a(n) ______.

Definition

 

 

 

 

atom

 

Term

 

 

 

What is the chemical symbol for Carbon?

Definition

 

 

 

C

Term

 

 

 

What is the chemical symbol for Sodium?

Definition

 

 

Na

Term

 

 

 

What is the chemical symbol for Lead?

Definition

 

 

Pb

Term

 

 

 

The atomic mass number defines the element and tells us the number of _______ that the atom contains.

Definition

 

 

Protons

Term

 

 

 

A particle with a different number of protons than electrons is a(n) _______.

Definition

 

 

 

ion

Term

 

 

 

A particle with a different number of protons than neutrons is a(n)

Definition

 

 

isotope

Term

 

 

 

Which of the following is one of the three subatomic particles of an atom?

Definition

 

 

prtoton

Term

 

 

 

An example of an ion is _______.

Definition

 

 

 

 

H

+ (Hydrogen)

Term

 

 

 

An example of an isotope is

Definition

 

 

 

146

C (Carbon)

Term

 

 

 

What is the product of the following reaction: C + O

 

2

______

Definition

 

 

 

CO

2 (carbon dioxide)

Term

 

 

 

How many atoms are in a molecule of water (H

 

2

O)?

Definition

 

 

3

Term

 

 

 

How many atoms are in a molecule of methane (CH

 

4

)?

Definition

 

 

 

5

Term

 

 

 

Which of the following elements is the MOST electronegative?

Definition

 

 

 

F (Fluorine)

Term

 

 

 

Which of the following is an example of a chemical reaction

Definition

 

 

 

water and carbon dioxide combine to form glucose during photosynthesis

Term

 

 

 

Burning wood is an example of a(n) ________.

Definition

 

 

 

chemical reaction

 

Term

 

 

 

 

The mass number of an element is the ________.

Definition

 

 

 

number of protons plus number of neutrons

 

Term

 

 

 

The pH of pure water is

Definition

 

 

7

Term

 

 

 

An acidic solution has a higher concentration of ____ ions.

Definition

 

 

 

H

+

Term

 

 

 

 

A basic solution has a higher concentration of ___ ions.

Definition

 

 

 

OH

-

Term

 

 

 

The Law of Conservation of Matter suggests that _______.

Definition

 

 

 

 

atoms cannot be created or destroyed

Term

 

 

 

The Law of Conservation of Energy suggests that

Definition

 

 

 

energy cannot be created or destroyed

Term

 

 

 

Organic compounds are primarily composed of ________.

Definition

 

 

 

Carbon

Term

 

 

 

Which of the following is an organic molecule?

Definition

 

 

(a) carbohydrate

(b) lipid

(c) protein

(d) nucleic Acid

(e) all of the above

 

Term

 

 

 

What role do carbohydrates serve in the functioning of organisms?

Definition

 

 

 

 

provides cellular structure and support

Term

 

 

 

What role do lipids serve in the functioning of organisms?

Definition

 

 

 

forms cell membrane

Term

 

 

 

What role doe proteins serve in the functioning of organisms?

Definition

 

 

 

performs specified functions

Term

 

 

 

 

What role doe nucleic acids serve in the functioning of organisms?

Definition

 

 

 

contains genetic material

Term

 

 

 

What is energy?

Definition

 

(a) the capacity to do work

(b) heat

(c) movement

(d) electricity

(e) all of the above

 

Term

 

 

 

Electricity (which is the movement of electrons through a wire) is an example of _________.

Definition

 

 

 

kinetic energy

Term

 

 

 

Heat is an example of _________.

Definition

 

 

 

kinetic energy

Term

 

 

 

The energy stored within bonds of gasoline molecule is an example of

Definition

 

 

 

 

potential energy

Term

 

 

In Hubbard Brook, NH deforestation along the riparian zone of Hubbard Creek has been shown to cause leaching (the pulling nutrients from the soil to the waterway) of which important nutrient

Definition

 

 

 

(e) NO

3-

Term

 

 

 

Why did the stream in Hubbard Brook, NH experience an increase in NO

 

3-

concentration after deforestation of the stream’s riparian zone

Definition

 

 

because without plants to absorb nutrients, like NO3

-, the nutrients end up in the waterways

Term

 

 

A study in New Hampshire observed the water quality impact of deforestation along stream banks of Hubbard Brook. What was the independent variable in this experiment

Definition

 

 

amount of trees in the riparian zone

Term

 

 

What is the definition of ecology?

Definition

 

the study of how organisms interact with their biotic environment

 

 

 

the study of how organisms interact with their abiotic environment

Term

 

 

 

The smallest unit of life is a(n) _______.

Definition

 

 

(c) cell

Term

 

 

 

The cell theory suggests that _______.

Definition

 

 

 

all life is composed of cells

 

Term

 

 

The organic molecule, deoxyribonucleic acid (DNA), is a long strand of _______.

Definition

 

 

genes

Term

 

 

These microscopic, single-celled organisms are found almost everywhere on earth. They are vital to the nutrient cycle, but often get a bad reputation as a threat to human health. What are they

Definition

 

microbes

Term

 

 

 

Which of the following correctly lists the layers of the earth from the center to the outside?

Definition

 

 

 

Core – Mantel – Crust

Term

 

 

Which of the following correctly lists the gaseous layers from the earth’s surface to the outside

Definition

 

 

Troposphere – Atmosphere – Stratosphere

Term

 

 

 

The degree of reflectivity that a surface has it is ________.

Definition

 

 

 

albeto

Term

 

 

 

Which if the following surfaces on earth produce the highest albeto effect

Definition

 

 

glacier

Term

 

 

 

Energy from the sun reaches earth in the form of

Definition

 

 

(a) visible light

(b) infrared energy (heat)

(c) ultraviolet (UV) radiation

(d) all of the above

 

 

Term

 

 

Which of the following molecules is located within the stratosphere, absorbs 95% of the sun’s incoming UV radiation, and makes life on earth possible

Definition

 

 

Ozone (O

3)

 

Term

 

 

How is the

 

anthropogenic greenhouse effect different from earth’s natural

greenhouse effect

Definition

 

 

a) The anthropogenic greenhouse effect is caused by human activity

b) The anthropogenic greenhouse effect increases the atmosphere’s ability to trap IR radiation

2 and CH4 (c) The anthropogenic greenhouse effect is the result of an increase in gasses, such as CO

(d) The anthropogenic greenhouse effect has been taking place for 100 years, while the natural greenhouse effect has been taking place for billions of years

(e) All of the above

 

Term

 

 

What are the REACTANTS in the reaction for photosynthesis?

Definition

 

 

 

6CO

2 + 6H2O

Term

 

 

What are the PRODUCTS of the reaction for aerobic cellular respiration?

Definition

 

 

 

C

6H12O6 + 6O2

Term

 

 

What is an autotroph?

Definition

 

 

(a) A photosynthetic organism

(b) A plant

(c) Cyanobacteria

(d) A producer

(e) All of the above

Term

 

 

What is a heterotroph?

Definition

 

 

 

A consumer

Term

 

 

 

The ecological efficiency, or percentage of energy transferred from one trophic level to the next, is in the range of

Definition

 

 

 

 2 – 40%

 

Term

 

 

What is the net primary productivity of an ecosystem?

Definition

 

 

 

The rate at which autotrophs produce energy relative to the rate at which heterotrophs consume energy

Term

 

 

 

Which of the following terrestrial ecosystems has the highest net primary productivity?

Definition

 

 

Swamps and marshes

Term

 

 

Which of the following aquatic ecosystems has the highest net primary productivity?

Definition

 

 

 

Estuaries

Term

 

 

Which of the following accurately lists the steps of the hydrologic cycle in order?

 

 

Definition

 

 

Evaporation – Condensation – Precipitation – Infiltration – Percolation

Term

 

 

Water has several unique properties that enable it to support life on Earth. Which of the follow is NOT a property of water?

Definition

 

 

Water condenses and becomes more dense as it freezes

Term

 

 

Which of the following are carbon sinks?

Definition

 

 

(a) CO

 

2

dissolved in the oceans

(b) Carbon stored in limestone and sediments

(c) Carbon found in fossil fuels

(d) Carbon located within plants

(e) All of the above

 

Term

 

 

How have anthropogenic factors influenced the carbon cycle?

Definition

 

(a) Destruction of rainforests via slash and burn methods has released carbon dioxide and reduced the rate of photosynthesis

(b) The burning of fossil fuels has increased carbon dioxide concentration in the atmosphere

(c) Large cattle farms are a major source of methane

(d) All of the above

Term

 

This element is the most abundant element in the atmosphere. It makes up 78% of the total amount of atmospheric gasses.

Definition

 

 

Nitrogen

Term

 

 

How have anthropogenic factors influenced the nitrogen cycle?

Definition

 

(a) Runoff from animal farms adds large volumes of nitrogen to waterways

(b) Excessive fertilization of agricultural fields adds nitrates to the environment

(c) Nitrogen oxides are added to the atmosphere by burning fossil fuels

(d) All of the above

 

Term

 

 

 

Plants can use nitrogen when it is in the form of _______.

Definition

 

 

(c) ammonium ion (NH

4+)

 

 

(d) nitrate ions (NO

3-)

Term

 

 

In contrast to other biogeochemical cycles, the phosphorus cycle does not involve the _______.

Definition

 

 

atmosphere

Term

 

 

Most soils are considered to be phosphate poor, making phosphorus a primary

Definition

 

 

 

limiting factor

Term

 

 

How have anthropogenic factors influenced the phosphorus cycle

 

Definition

(a) Runoff from fertilized fields adds excess phosphates to waterways

(b) Effluent from wastewater treatment facilities adds large volumes of phosphorus to waterways

(c) Cleaning products that are not properly disposed of add phosphates to waterways

(d) All of the above

Term

 

The idea, proposed by Charles Darwin, that all species descend from earlier species is known as ______.

Definition

 

 

The Theory of Evolution

Term

 

 

Natural selection is dependant on ______.

Definition

 

 

(a) mutations

(b) inherited traits

Term

 

 

Scientists predict that there have been 5 mass extinctions throughout the history of life on earth. What defines a mass extinction?

Definition

 

 

 

Extinction of at least half the life on earth at a given time

Term

 

 

a habitat is equivalent to a species’ address, its _______ is equivalent to its job.

Definition

 

 

 

niche

Term

 

 

Over time, tectonic movements in the earth’s crust caused the ancient continent, known as ________, to separate into the 7 continents that we know today.

Definition

 

 

 

Pangaea

Term

 

 

A species that is native to a region and found only in that regions is considered to be a(n) _____ specie

Definition

 

 

endemic

 

 

Term

 

 

 

Speciation is the creation of an entirely new species. This is the result of geographic isolation followed by ________ isolation

Definition

 

 

 

reproductive

Term

 

 

 

What is the primary way in which humans caused premature extinction of certain species

Definition

 

 

 

Habitat destruction

Term

 

 

 

Competition for limited resources drives _______.

Definition

 

 

 

natural selection

 

Term

 

 

A genetically modified organism (GMO) is a(n) ________.

Definition

 

 

 

organism with genes from a different species

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