Ecology Quiz A
1. Which of the following is an example of an abiotic factor?
a. Green plants
c. Temperature
b. Bacteria
d. Humans
2. Which of the following is a density independent limiting factor?
a. Natural disaster
c. Food supply
b. Disease
d. Space
3. If an organism has several offspring that have a high mortality rate and little effort is made to
raise the young, then this is most likely what kind of organism?
a. K-selected
c. Abiotic
b. R-selected
d. Limiting factor
4. Bees will visit flowers to drink the nectar while the flower coats the bee in pollen. The bee will
pollinate flowers by carrying this pollen while in collects nectar to make honey. Both of these
organisms benefit from the relationship. What kind of symbiosis is this an example of?
a. Competition
c. Parasitism
b. Commensalism
d. Mutualism
5. Quadrats are used to estimate population sizes of some organisms. Which of the following
organisms would you not use a quadrat for?
a. Weeds in a lawn
c. Trees in a forest
b. Fish in the ocean
d. Flowers in a garden
6. The following data was recorded using quadrats that were each 1m​2​. We are trying to estimate
the population of dandelions in a 100m​2​ yard. Given the data, roughly how many dandelions
are in the yard?
Quadrat
a.
b.
c.
d.
300
5
500
1000
# of
dandelions
1
4
2
8
3
3
7. What could be done to increase the accuracy of the population estimate in the previous
question?
a. Quadrats could be placed where there are more dandelions to get a better count of the
total number of plants
b. We could use fewer quadrats to make the equation easier to calculate
c. The quadrats could be overlapped to count the area multiple times so there are no
plants missed
d. We could use more quadrats to increase the sample size
8. In another population study, students are trying to estimate the number of mice in a school.
During the first week of school mice were trapped and tagged with a microchip. 12 mice were
captured and tagged in the first week. During the last week of school, the students trapped
mice again and caught 7 mice that were not tagged and 3 that were tagged. What is the
estimated population of mice in the school?
a.
b.
c.
d.
40
30
120
84
9. Use the graph below to find the carrying capacity for the wolves.
a. 17
b. 2075
c. 2250
d. 23
10. In the graph above, what was the highest number of deer in the population?
a. 24
c. 2400
b. 2250
d. 30
Ecology Quiz B
1. Which of the following is an example of an abiotic factor?
a. Green plants
c. Temperature
b. Bacteria
d. Humans
2. Which of the following is a density independent limiting factor?
a. Natural disaster
c. Food supply
b. Disease
d. Space
3. If an organism has few offspring that have a low mortality rate and lots of effort is made to
raise the young, then this is most likely what kind of organism?
a. K-selected
c. Abiotic
b. R-selected
d. Limiting factor
4. Bees will visit flowers to drink the nectar while the flower coats the bee in pollen. The bee will
pollinate flowers by carrying this pollen while in collects nectar to make honey. Both of these
organisms benefit from the relationship. What kind of symbiosis is this an example of?
a. Competition
c. Parasitism
b. Commensalism
d. Mutualism
5. Quadrats are used to estimate population sizes of some organisms. Which of the following
organisms would you not use a quadrat for?
a. Weeds in a lawn
c. Trees in a forest
b. Fish in the ocean
d. Flowers in a garden
6. The following data was recorded using quadrats that were each 1m​2​. We are trying to estimate
the population of dandelions in a 200m​2​ yard. Given the data, roughly how many dandelions
are in the yard?
Quadrat
a.
b.
c.
d.
300
5
500
1000
# of
dandelions
1
4
2
8
3
3
7. What could be done to increase the accuracy of the population estimate in the previous
question?
a. Quadrats could be placed where there are more dandelions to get a better count of the
total number of plants
b. We could use fewer quadrats to make the equation easier to calculate
c. The quadrats could be overlapped to count the area multiple times so there are no
plants missed
d. We could use more quadrats to increase the sample size
8. In another population study, students are trying to estimate the number of mice in a school.
During the first week of school mice were trapped and tagged with a microchip. 12 mice were
captured and tagged in the first week. During the last week of school, the students trapped
mice again and caught 6 mice that were not tagged and 4 that were tagged. What is the
estimated population of mice in the school?
a.
b.
c.
d.
40
30
120
84
9. Use the graph below to find the carrying capacity for the deer.
a. 17
b. 2075
c. 2250
d. 23
10. In the graph above, what was the highest number of wolves in the population?
a. 24
c. 2400
b. 2250
d. 30