Question 1

Are humans capable of upsetting global biogeochemical cycles with their activities?

Accepted Answer

Human activities remove chemi

Question 2

What does the word "trophic" mean?

Accepted Answer

A) energy 
B) niche 
C) web 
D) feeding 
E) biomass 
A) energy 
B) niche 
C) web 
D) feeding 
E) biomass

Question 3

There are no reservoirs of carbon for the carbon cycle.

Accepted Answer

A) True 
 B)False

Question 4

What do autotrophs require in order to produce food for themselves and all the heterotrophs?

Accepted Answer

A) sunlight,inorganic nutrients 
B) sunlight,organic nutrients 
C) an energy source,water 
D) an energy source,inorganic nutrients 
E) heat,water 
A) sunlight,inorganic nutrients 
B) sunlight,organic nutrients 
C) an energy source,water 
D) an energy source,inorganic nutrients 
E) heat,water

Question 5

The richest marine ecosystems are those in the open water where large fish abound.

Accepted Answer

A) True 
 B)False

Question 6

From the North Pole south,what is the first type of ecosystem encountered?

Accepted Answer

A) coniferous forests 
B) prairies 
C) temperate forests 
D) taiga 
E) tundra 
A) coniferous forests 
B) prairies 
C) temperate forests 
D) taiga 
E) tundra

Question 7

Which of the following is on the same trophic level as a rabbit?

Accepted Answer

A) deer 
B) snake 
C) fox 
D) hawk 
E) beetle 
A) deer 
B) snake 
C) fox 
D) hawk 
E) beetle

Question 8

Cultural eutrophication can be caused by

Accepted Answer

A) respiration and transpiration. 
B) mercury from industrial sources. 
C) bacteria and viruses from sewage and barnyard waste. 
D) detergents,fertilizers,and sewage treatment plants. 
E) biological magnification. 
A) respiration and transpiration. 
B) mercury from industrial sources. 
C) bacteria and viruses from sewage and barnyard waste. 
D) detergents,fertilizers,and sewage treatment plants. 
E) biological magnification.

Question 9

What is at the beginning of a grazing food chain?

Accepted Answer

A) detritus 
B) earthworms 
C) beetles 
D) shrews 
E) leaves 
A) detritus 
B) earthworms 
C) beetles 
D) shrews 
E) leaves

Question 10

If the first-level carnivores consumes 500 kg of energy from herbivore tissue,how much is available to the second-level carnivores?

Accepted Answer

A) 500 kg 
B) 100 kg 
C) 50 kg 
D) 10 kg 
E) 5 kg 
A) 500 kg 
B) 100 kg 
C) 50 kg 
D) 10 kg 
E) 5 kg

Question 11

What is involved in the process of denitrification?

Accepted Answer

A) conversion of nitrogen gas to ammonium 
B) conversion of nitrogen gas to nitrate 
C) conversion of ammonium to nitrate 
D) conversion of nitrite to nitrate 
E) conversion of nitrate to nitrogen gas 
A) conversion of nitrogen gas to ammonium 
B) conversion of nitrogen gas to nitrate 
C) conversion of ammonium to nitrate 
D) conversion of nitrite to nitrate 
E) conversion of nitrate to nitrogen gas

Question 12

Which is the following functions of a herbivore provides energy that becomes available to the carnivore that eats the herbivore?

Accepted Answer

A) excretion 
B) defecation 
C) growth and reproduction 
D) cellular respiration 
E) death 
A) excretion 
B) defecation 
C) growth and reproduction 
D) cellular respiration 
E) death

Question 13

Life on Earth is dependent on a continued input of energy from the sun.

Accepted Answer

A) True 
 B)False

Question 14

When a rabbit eats a bean plant a portion of the available energy moves into the rabbit's body.When the rabbit is eaten by a hawk a portion of the available energy moves into the hawk's body.Indicate the various areas that energy is used by an organism and why only 10% of the rabbit's available energy will move to the hawk.

Accepted Answer

When an organism consumes energy only 10

Question 15

Which of the following is not an effect of global warming?

Accepted Answer

A) rise in sea level 
B) expansion of forests in the temperate zones 
C) melting of glaciers 
D) wetter coastal regions 
E) flooding of coastal agricultural land 
A) rise in sea level 
B) expansion of forests in the temperate zones 
C) melting of glaciers 
D) wetter coastal regions 
E) flooding of coastal agricultural land

Question 16

What is another name for the taiga?

Accepted Answer

A) savanna 
B) tropical rain forest 
C) prairie 
D) coniferous forest 
E) tundra 
A) savanna 
B) tropical rain forest 
C) prairie 
D) coniferous forest 
E) tundra

Question 17

How much of the food energy taken in by an herbivore is passed on to a carnivore?

Accepted Answer

A) 1% 
B) 5% 
C) 10% 
D) 50% 
E) 90% 
A) 1% 
B) 5% 
C) 10% 
D) 50% 
E) 90%

Question 18

What two characteristics define a biome?

Accepted Answer

A) temperature and the types of plants found there 
B) amount of precipitation and the types of plants found there 
C) temperature and rainfall 
D) latitude and rainfall 
E) altitude and temperature 
A) temperature and the types of plants found there 
B) amount of precipitation and the types of plants found there 
C) temperature and rainfall 
D) latitude and rainfall 
E) altitude and temperature

Question 19

Almost 100% of the energy taken in by plants from the sun is available to an ecosystem.

Accepted Answer

A) True 
 B)False

Question 20

What is another name for autotrophs?

Accepted Answer

A) herbivores 
B) carnivores 
C) omnivores 
D) producers 
E) detritus feeders 
A) herbivores 
B) carnivores 
C) omnivores 
D) producers 
E) detritus feeders

Exam 24: Global Ecology and Human Interferences

Are humans capable of upsetting global biogeochemical cycles with their activities?

What does the word "trophic" mean?

There are no reservoirs of carbon for the carbon cycle.

What do autotrophs require in order to produce food for themselves and all the heterotrophs?

The richest marine ecosystems are those in the open water where large fish abound.

From the North Pole south,what is the first type of ecosystem encountered?

Which of the following is on the same trophic level as a rabbit?

Cultural eutrophication can be caused by

What is at the beginning of a grazing food chain?

If the first-level carnivores consumes 500 kg of energy from herbivore tissue,how much is available to the second-level carnivores?

What is involved in the process of denitrification?

Which is the following functions of a herbivore provides energy that becomes available to the carnivore that eats the herbivore?

Life on Earth is dependent on a continued input of energy from the sun.

Which of the following is not an effect of global warming?

What is another name for the taiga?

How much of the food energy taken in by an herbivore is passed on to a carnivore?

What two characteristics define a biome?

Almost 100% of the energy taken in by plants from the sun is available to an ecosystem.

What is another name for autotrophs?

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