Question 1

A coral reef community may include all of the following EXCEPT _______.

Accepted Answer

A) water 
B) fish 
C) aquatic plants 
D) phytoplankton 
A) water 
B) fish 
C) aquatic plants 
D) phytoplankton

Question 2

In the carbon cycle,photosynthetic organisms use carbon dioxide to produce _________.

Accepted Answer

A) sugar molecules 
B) lipid molecules 
C) protein molecules 
D) nucleic acids 
E) protons 
A) sugar molecules 
B) lipid molecules 
C) protein molecules 
D) nucleic acids 
E) protons

Question 3

Science Literacy Use the following graph to answer the next questions:  
-If the mean annual precipitation in the tropical seasonal forest biome increased by 200 cm while mean annual temperature remained the same,which biome would it turn into?

Accepted Answer

A) temperate forest 
B) mediterranean scrub 
C) tropical rainforest 
D) It would stay as a tropical seasonal forest. 
A) temperate forest 
B) mediterranean scrub 
C) tropical rainforest 
D) It would stay as a tropical seasonal forest.

Question 4

The biome that contains the least amount of moisture is a __________.

Accepted Answer

A) savanna 
B) temperate grassland 
C) mountain 
D) temperate forest 
E) tropical scrub 
A) savanna 
B) temperate grassland 
C) mountain 
D) temperate forest 
E) tropical scrub

Question 5

A(n)_________ factor is the one abiotic or biotic factor whose supply determines the population size of a given species in a given biome.

Accepted Answer

A) tolerance 
B) stress 
C) intolerance 
D) finite 
E) limiting 
A) tolerance 
B) stress 
C) intolerance 
D) finite 
E) limiting

Question 6

Which of the following is TRUE regarding the nitrogen cycle?

Accepted Answer

A) Microbes convert atmospheric N2 to NH3. 
B) Lightning converts N2 to NO3. 
C) Microbes use NO3 and convert it to N2. 
D) Microbes break down organic matter and release NH4. 
E) All of these answer choices are true regarding the nitrogen cycle. 
A) Microbes convert atmospheric N2 to NH3. 
B) Lightning converts N2 to NO3. 
C) Microbes use NO3 and convert it to N2. 
D) Microbes break down organic matter and release NH4. 
E) All of these answer choices are true regarding the nitrogen cycle.

Question 7

In the carbon cycle,plants remove carbon from the atmosphere through the process of _______.

Accepted Answer

A) photosynthesis 
B) cellular respiration 
C) oxidation 
D) transpiration 
E) evaporation 
A) photosynthesis 
B) cellular respiration 
C) oxidation 
D) transpiration 
E) evaporation

Question 8

What is a biome? What are the major factors that distinguish one biome from another?

Accepted Answer

A biome is one of many distinctive types

Question 9

In the design of Biosphere 2,which environmental variables could be carefully controlled and precisely measured?

Accepted Answer

A) temperature 
B) water availability 
C) proportion of oxygen in the air 
D) proportion of carbon dioxide in the air 
E) all of the answer choices are correct 
A) temperature 
B) water availability 
C) proportion of oxygen in the air 
D) proportion of carbon dioxide in the air 
E) all of the answer choices are correct

Question 10

Why is it difficult or impossible for ecologists to study the biosphere as a whole? Why is it useful to break down the biosphere into sections such as ecosystems,communities,and populations?

Accepted Answer

The biosphere,or Earth,is made up of man

Question 11

A group of individuals of the same species living and interacting in the same region is a(n)____________.

Accepted Answer

A) community 
B) population 
C) cohort 
D) biome 
E) ecosystem 
A) community 
B) population 
C) cohort 
D) biome 
E) ecosystem

Question 12

Which of the following is NOT a way humans disrupt the carbon cycle?

Accepted Answer

A) deforestation 
B) using excessive fertilizers 
C) burning fossil fuels 
D) burning forests to clear land 
A) deforestation 
B) using excessive fertilizers 
C) burning fossil fuels 
D) burning forests to clear land

Question 13

Which of the following could be considered a limiting factor for a species?

Accepted Answer

A) pH of the soil 
B) temperature 
C) level of humidity 
D) dissolved oxygen levels in water 
E) All of the choices listed above could be a limiting factor for a species. 
A) pH of the soil 
B) temperature 
C) level of humidity 
D) dissolved oxygen levels in water 
E) All of the choices listed above could be a limiting factor for a species.

Question 14

Why do ecologists say that Earth is a closed system for matter?

Accepted Answer

A) because there are no new inputs of matter 
B) because there is no net loss of matter 
C) because matter cycles in and out of organisms in ecosystems 
D) because matter stays in the biosphere 
E) All of the answer choices are correct. 
A) because there are no new inputs of matter 
B) because there is no net loss of matter 
C) because matter cycles in and out of organisms in ecosystems 
D) because matter stays in the biosphere 
E) All of the answer choices are correct.

Question 15

A bear eating a fish is an example of which of the following?

Accepted Answer

A) nutrient cycling 
B) energy flow 
C) solar radiation 
D) both nutrient cycling and energy flow 
E) both energy flow and solar radiation 
A) nutrient cycling 
B) energy flow 
C) solar radiation 
D) both nutrient cycling and energy flow 
E) both energy flow and solar radiation

Question 16

A plant harnessing solar energy from the Sun is an example of which of the following?

Accepted Answer

A) nutrient cycling 
B) community interactions 
C) energy flow 
D) biomass 
E) terrestrial radiation 
A) nutrient cycling 
B) community interactions 
C) energy flow 
D) biomass 
E) terrestrial radiation

Question 17

All of the following can be found in the biosphere EXCEPT ________.

Accepted Answer

A) the ozone layer 
B) soil 
C) fish 
D) rocks 
E) All of these answer choices are correct. 
A) the ozone layer 
B) soil 
C) fish 
D) rocks 
E) All of these answer choices are correct.

Question 18

Describe two abiotic factors that influence the distribution and makeup of biomes and how they do this.

Accepted Answer

Two abiotic factors that influence the d

Question 19

Describe the two main goals of the Biosphere 2 experiment.Was the experiment a success or a failure?

Accepted Answer

The Biosphere 2 experiment had two main

Question 20

Denitrifying bacteria convert nitrate into ________,thus returning nitrogen to _________.

Accepted Answer

A) ammonia; its most stable form 
B) nitrogen gas; the atmosphere 
C) proteins; a usable form 
D) ammonia; its least stable form 
E) nitrogen gas; the soil 
A) ammonia; its most stable form 
B) nitrogen gas; the atmosphere 
C) proteins; a usable form 
D) ammonia; its least stable form 
E) nitrogen gas; the soil

Exam 4: Ecosystems and Nutrient Cycling Engineering Earth

A coral reef community may include all of the following EXCEPT _______.

In the carbon cycle,photosynthetic organisms use carbon dioxide to produce _________.

Science Literacy Use the following graph to answer the next questions: -If the mean annual precipitation in the tropical seasonal forest biome increased by 200 cm while mean annual temperature remained the same,which biome would it turn into?

The biome that contains the least amount of moisture is a __________.

A(n)_________ factor is the one abiotic or biotic factor whose supply determines the population size of a given species in a given biome.

Which of the following is TRUE regarding the nitrogen cycle?

In the carbon cycle,plants remove carbon from the atmosphere through the process of _______.

What is a biome? What are the major factors that distinguish one biome from another?

In the design of Biosphere 2,which environmental variables could be carefully controlled and precisely measured?

Why is it difficult or impossible for ecologists to study the biosphere as a whole? Why is it useful to break down the biosphere into sections such as ecosystems,communities,and populations?

A group of individuals of the same species living and interacting in the same region is a(n)____________.

Which of the following is NOT a way humans disrupt the carbon cycle?

Which of the following could be considered a limiting factor for a species?

Why do ecologists say that Earth is a closed system for matter?

A bear eating a fish is an example of which of the following?

A plant harnessing solar energy from the Sun is an example of which of the following?

All of the following can be found in the biosphere EXCEPT ________.

Describe two abiotic factors that influence the distribution and makeup of biomes and how they do this.

Describe the two main goals of the Biosphere 2 experiment.Was the experiment a success or a failure?

Denitrifying bacteria convert nitrate into ________,thus returning nitrogen to _________.

environmental Literacy and Sustainability Lessons From a Vanished Society

Science Literacy and the Process of Science Fungal Attacker Threatens North American Bats

Information Literacy and Toxicology Lead in the Water

Population Ecology Gray Wolves Return to Yellowstone

Community Ecology the Florida Everglades: a Community in Cris

evolution and Extinction a Tropical Murder Mystery

Biodiversity Palm Oil Plantations Threaten Tropical Forests

Preserving Biodiversity a Forest Without Elephants

Human Populations the Kerala Model

Urbanization and Sustainable Communities Creating Green Cities

Environmental Health Eradicating a Parasitic Nightmare

ecological Economics and Consumption Wall to Wall, Cradle to Cradle

environmental Policy the World Tackles Ozone Depletion

managing Solid Waste a Plastic Surf

Freshwater Resources Toilet to Tap

Water Pollution Suffocating the Gulf

marine Ecosystems Ocean Acidification: the Other Co2 Problem

Forests Returning Trees to Haiti

soil Resources and Grasslands Restoring the Range

Mineral Resources No Stone Unturned

Feeding the World a Gene Revolution

sustainable Agriculture: Raising Crops Farming Like an Ecosystem

Agriculture: Raising Livestock Can Meat Be Part of a Healthy, Environmentally Conscious Diet

Fisheries and Aquaculture Fish in a Warehouse

coal Bringing Down the Mountain

Oil and Natural Gas the Bakken Oil Boom

Air Pollution the Youngest Scientists

global Climate Change Climate Refugees

Nuclear Power the Future of Fukushima

Sun, Wind, Water, and Earth Energy Fueled by the Sun

Biofuels Gas From Grass

Filters

Denitrifying bacteria convert nitrate into ,thus returning nitrogen to _.