Trophic Levels and Food Webs

Question 1

What make up the trophic levels of an ecosystem

Answer 1

producers and consumers

Question 2

How many levels of consumers are there

Answer 2

4

Question 3

What are the trophic levels that energy progresses through

Answer 3

producers
primary consumer
secondary consumer 
tertiary consumer
quaternary consumer

Question 4

Food webs show ……. relationships

Answer 4

complex

Question 5

Do food chains also show detrivores/decomposers

Answer 5

yes

Question 6

Mushrooms are ………

Answer 6

decomposers

Question 7

What is the importance of mushrooms

Answer 7

our forests could not survive without them

Question 8

Population growth can upset the …….. of an ecosystem

Answer 8

balance

Question 9

What are the limiting factors on population

Answer 9

food
space 
competition
shelter
disease

Question 10

Carrying capacity

Answer 10

initial period of exponential growth

Question 11

Limiting factors in populations can growth to ……. and eventually …….

Answer 11

slow;stop

Question 12

When does population stabilizes

Answer 12

when carrying capacity is reached

Question 13

Food web dynamics are affected by what

Answer 13

changes in predator and/or prey populations

Question 14

Predator/Prey dynamics allow different ……. to occupy the same ecosystem

Answer 14

predators

Question 15

Does the elimination of one species affect other species

Answer 15

yes

Question 16

What will happen to prey populations if the predators is removed

Answer 16

prey will overpopulate

Question 17

Elimination of species can also affect….

Answer 17

other predators in a food web

Question 18

What are the types of trophic pyramids

Answer 18

pyramid of numbers
pyramid of biomass
pyramid of energy

Question 19

Pyramid of numbers show what

Answer 19

total organisms in each population in an ecosystem

Question 20

Pyramid of numbers show the relationship between ……..

Answer 20

different populations

Question 21

The bottom of the pyramid of numbers of the ……. level in most cases

Answer 21

largest

Question 22

Pyramid of biomass show

Answer 22

amount of biomass at each trophic level

Question 23

Pyramid of biomass does not count for….

Answer 23

energy lost due to metabolism

Question 24

Where is most biomass in the pyramid of biomass

Answer 24

bottom level

Question 25

Which is the most useful pyramid

Answer 25

the pyramid of energy

Question 26

What does the pyramid of energy show

Answer 26

direct energy distribution

Question 27

The pyramid of energy also shows amount of energy

Answer 27

consumer/lost by organisms at each level

Question 28

What is the percentage of energy that is passed on at each level

Answer 28

10-15%