Home > Chapter 37: Communities and Ecosystems > Chapter Guide > Activities Quiz
 
 
Chapter Chapter 37: Communities and Ecosystems
 
Activities Quiz
 

1 .       A human eats a deer. Which of these terms applies to the relationship between the human and the deer? (Activity 37A) 

 predation
 competition
 parasitism
 commensalism
 mutualism
2 .       Humans and sharks both eat fish. Which of these terms applies to the relationship between the human and the shark? (Activity 37A) 

 predation
 competition
 parasitism
 commensalism
 mutualism
3 .       Humans who have pets tend to be healthier than humans who do not have pets. Which of these terms applies to the relationship between a human and a pet? (Activity 37A) 

 predation
 competition
 parasitism
 commensalism
 mutualism
4 .       Which of these terms applies to the relationship between a dog and a blood-sucking tick? (Activity 37A) 

 predation
 competition
 parasitism
 commensalism
 mutualism
5 .       An egret eats insects stirred up by grazing animals. Which of these terms applies to the relationship between the egret and the grazing animal? (Activity 37A) 

 predation
 competition
 parasitism
 commensalism
 mutualism
6 .       Which of these is a starting point for primary succession? (Activity 37B) 

 a surface exposed by a retreating glacier
 abandoned farmland
 an abandoned city
 a neglected yard
 none of these is a starting point for primary succession
7 .       In an ecosystem, phytoplankton are _____. (Activity 37C) 

 producers
 primary consumers
 secondary consumers
 tertiary consumers
 detritivores
8 .       An earthworm that feeds on the remains of plants and animals is acting as a _____. (Activity 37C) 

 producer
 primary consumer
 secondary consumer
 tertiary consumer
 detritivore
9 .       When a human eats a steak, the human is acting as a _____. (Activity 37C) 

 producer
 primary consumer
 secondary consumer
 tertiary consumer
 detritivore
10 .       A cow eating grass is an example of a _____. (Activity 37C) 

 producer
 primary consumer
 secondary consumer
 tertiary consumer
 detritivore
11 .       A human who just ate a hamburger is eaten by a shark while swimming. The shark is acting as a _____. (Activity 37C) 

 producer
 primary consumer
 secondary consumer
 tertiary consumer
 detritivore
12 .       Where do plants get the energy to make organic molecules? (Activity 37D) 

 minerals
 glucose
 vitamins
 light
 water
13 .       Which of these is NOT an organic molecule? (Activity 37D) 

 carbohydrates
 minerals
 proteins
 glucose
 lipids
14 .       Where do plants get the carbon they use to make organic molecules? (Activity 37D) 

 glucose
 oxygen
 water
 starch
 carbon dioxide
15 .       _____ are secondary consumers. (Activity 37E) 

 Producers
 Herbivores
 Plants
 Cows
 Carnivores
16 .       Approximately _____% of the energy at one trophic level is passed on to the next highest trophic level. (Activity 37E) 

 0–5
 5–10
 10–15
 15–20
 90–100
17 .       10,000 kcal of producer could support approximately _____ kcal of tertiary consumer. (Activity 37E) 

 1,000
 100
 10
 1
 0
18 .       What name is given to the process by which detritivores return carbon to the atmosphere? (Activity 37F) 

 burning
 predation
 photosynthesis
 predation and photosynthesis
 decomposition
19 .       Which of these removes carbon from the atmosphere? (Activity 37F) 

 logging trees
 rabbits
 burning fossil fuels, such as oil
 bobcats
 algae
20 .       Detritus is composed of _____. (Activity 37F) 

 detritivores
 dead organic matter
 inorganic minerals
 excreted wastes
 dead organic matter and excreted wastes
21 .       Nitrifying bacteria convert _____ to _____. (Activity 37G) 

 nitrogen gas ... ammonium
 nitrogen gas ... nitrates
 ammonium ... nitrites
 nitrates ... nitrogen gas
 ammonium ... nitrogen gas
22 .       _____ removes nitrogen from the atmosphere. (Activity 37G) 

 Denitrification
 Nitrification
 Mineralization
 Nitrogen fixation
 Assimilation
23 .       Which of these are the two major sources of nitrate pollution in rivers? (Activity 37H) 

 the burning of fossil fuels by factories and cars
 animal wastes and the burning of fossil fuels by cars
 animal wastes and fertilizers
 fertilizer runoff and the burning of fossil fuels by cars
 animal wastes and the burning of fossil fuels by factories
24 .       Aquatic nitrate pollution can result in _____. (Activity 37H) 

 algal bloom
 oxygen depletion
 fish kills
 hypoxia
 an algal bloom that, when the algae die and are decomposed by bacteria, leads to hypoxia and the death of fish