Question 1

Describe the physical and chemical processes of photosynthesis in plants.Be sure to give the balanced equation for photosynthesis.

Accepted Answer

Photosynthesis is the process by which g

Question 2

Which is true of recent studies of Prairie ecosystems?

Accepted Answer

A) areas with higher species diversity retained and used nutrients more efficiently. 
B) areas with higher species diversity had lower productivity. 
C) areas with higher species diversity showed less stability. 
D) areas with higher species diversity had lower total plant cover. 
E) areas with higher species diversity were less capable of dealing with drought. 
A) areas with higher species diversity retained and used nutrients more efficiently. 
B) areas with higher species diversity had lower productivity. 
C) areas with higher species diversity showed less stability. 
D) areas with higher species diversity had lower total plant cover. 
E) areas with higher species diversity were less capable of dealing with drought.

Question 3

A consumer that feeds on both producers and consumers is called a carnivore.

Accepted Answer

A) True 
 B)False

Question 4

Organisms that are capable of using carbon dioxide as their sole source of carbon are called

Accepted Answer

A) omnivores. 
B) decomposers. 
C) autotrophs. 
D) heterotrophs. 
E) consumers. 
A) omnivores. 
B) decomposers. 
C) autotrophs. 
D) heterotrophs. 
E) consumers.

Question 5

Alexander von Humboldt first proposed the idea that plant communities change with altitude just as they do with latitude.This is known as the

Accepted Answer

A) altitude-latitude hypothesis. 
B) vegetation similarity theory. 
C) life zone concept. 
D) "plant fallacy hypothesis" since the idea was later disproved. 
E) ecotone concept. 
A) altitude-latitude hypothesis. 
B) vegetation similarity theory. 
C) life zone concept. 
D) "plant fallacy hypothesis" since the idea was later disproved. 
E) ecotone concept.

Question 6

Which of the following is true regarding the hypoxic zone (Dead Zone)off the coast of Louisiana?

Accepted Answer

A) during large floods the size of the hypoxic zone shrinks. 
B) agricultural areas use only the amount of fertilizer needed. 
C) The agricultural,feedlot,and fertilizer industries deny any connection between their nutrient runoff and the hypoxic zone. 
D) The hypoxic zone is deadly to marine organisms due to its toxically high oxygen levels. 
E) Hypoxic zones have not existed elsewhere. 
A) during large floods the size of the hypoxic zone shrinks. 
B) agricultural areas use only the amount of fertilizer needed. 
C) The agricultural,feedlot,and fertilizer industries deny any connection between their nutrient runoff and the hypoxic zone. 
D) The hypoxic zone is deadly to marine organisms due to its toxically high oxygen levels. 
E) Hypoxic zones have not existed elsewhere.

Question 7

Plant growth (net photosynthesis)is a function of

Accepted Answer

A) respiration minus photosynthesis. 
B) photosynthetic rates alone. 
C) respiration rates alone. 
D) photosynthesis minus respiration. 
E) growth rate minus respiration. 
A) respiration minus photosynthesis. 
B) photosynthetic rates alone. 
C) respiration rates alone. 
D) photosynthesis minus respiration. 
E) growth rate minus respiration.

Question 8

The different spatial distribution of mallard ducks and snail kites illustrates the operation of

Accepted Answer

A) limiting factors. 
B) competitive exclusions. 
C) management through logging. 
D) symbiosis. 
E) exclusivity 
A) limiting factors. 
B) competitive exclusions. 
C) management through logging. 
D) symbiosis. 
E) exclusivity

Question 9

All life on Earth contains hydrogen and oxygen.

Accepted Answer

A) True 
 B)False

Question 10

Bears eat both plants and animals therefore,they are

Accepted Answer

A) herbivores. 
B) carnivores. 
C) omnivores. 
D) specialists. 
E) producers. 
A) herbivores. 
B) carnivores. 
C) omnivores. 
D) specialists. 
E) producers.

Question 11

Net primary productivity is

Accepted Answer

A) measured in tons per liter. 
B) measured in kilograms of plant material per hectare. 
C) measured in grams of fixed carbon per square metre per year. 
D) estimated based on plant height. 
E) measured in brams of plant stalk per linear metre per year. 
A) measured in tons per liter. 
B) measured in kilograms of plant material per hectare. 
C) measured in grams of fixed carbon per square metre per year. 
D) estimated based on plant height. 
E) measured in brams of plant stalk per linear metre per year.

Question 12

In a food chain,toxic chemicals tend to accumulate and concentrate most in the

Accepted Answer

A) top carnivore. 
B) autotrophs. 
C) primary consumers. 
D) primary producers. 
E) decomposers. 
A) top carnivore. 
B) autotrophs. 
C) primary consumers. 
D) primary producers. 
E) decomposers.

Question 13

The greatest amount of biomass of an undisturbed ecosystem occurs when the ecosystem has fully matured.

Accepted Answer

A) True 
 B)False

Question 14

Define the following: ecosystem,community,habitat,niche.

Accepted Answer

An ecosystem is a complex network of liv

Question 15

Biomass is the net dry weight of organic material available to feed the food chain.

Accepted Answer

A) True 
 B)False

Question 16

Distinguish between mutualistic and parasitic relationships.

Accepted Answer

Mutualistic relationships are interactio

Question 17

Light,temperature,water,and climate are examples of

Accepted Answer

A) biotic ecosystem components. 
B) abiotic system components. 
C) factors unrelated to photosynthesis. 
D) ecosystem controls. 
E) ecological niche 
A) biotic ecosystem components. 
B) abiotic system components. 
C) factors unrelated to photosynthesis. 
D) ecosystem controls. 
E) ecological niche

Question 18

The difference between photosynthetic production and respiration loss is called net respiration.

Accepted Answer

A) True 
 B)False

Question 19

Chlorophyll ________ green light,which means that it ________ green light for photosynthesis.

Accepted Answer

A) absorbs uses 
B) absorbs does not use 
C) reflects uses 
D) reflects does not use 
A) absorbs uses 
B) absorbs does not use 
C) reflects uses 
D) reflects does not use

Question 20

Areas that experience high temperatures and high precipitation are characterized as

Accepted Answer

A) temperate deserts. 
B) deciduous forests. 
C) tropical forests. 
D) tropical grasslands. 
E) tropical savanna. 
A) temperate deserts. 
B) deciduous forests. 
C) tropical forests. 
D) tropical grasslands. 
E) tropical savanna.

Exam 19: Ecosystem Essentials

Describe the physical and chemical processes of photosynthesis in plants.Be sure to give the balanced equation for photosynthesis.

Which is true of recent studies of Prairie ecosystems?

A consumer that feeds on both producers and consumers is called a carnivore.

Organisms that are capable of using carbon dioxide as their sole source of carbon are called

Alexander von Humboldt first proposed the idea that plant communities change with altitude just as they do with latitude.This is known as the

Which of the following is true regarding the hypoxic zone (Dead Zone)off the coast of Louisiana?

Plant growth (net photosynthesis)is a function of

The different spatial distribution of mallard ducks and snail kites illustrates the operation of

All life on Earth contains hydrogen and oxygen.

Bears eat both plants and animals therefore,they are

Net primary productivity is

In a food chain,toxic chemicals tend to accumulate and concentrate most in the

The greatest amount of biomass of an undisturbed ecosystem occurs when the ecosystem has fully matured.

Define the following: ecosystem,community,habitat,niche.

Biomass is the net dry weight of organic material available to feed the food chain.

Distinguish between mutualistic and parasitic relationships.

Light,temperature,water,and climate are examples of

The difference between photosynthetic production and respiration loss is called net respiration.

Chlorophyll ________ green light,which means that it ________ green light for photosynthesis.

Areas that experience high temperatures and high precipitation are characterized as

Essentials of Geography

Solar Energy to Earth and the Seasons

Earth's Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Climate Systems and Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems and Landforms

Eolian Processes and Arid Landscapes

The Oceans, Coastal Processes, and Landforms

Glacial and Periglacial Processes and Landforms

The Geography of Soils

Terrestrial Biomes

Earth and the Human Denominator

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Chlorophyll green light,which means that it green light for photosynthesis.