Investigate how organisms and populations in an ecosystem depend on and may compete for biotic factors such as food and abiotic factors such as availability of light and water, range of temperatures, or soil composition.
Track each student's skills and progress in your Mastery dashboards
Give this quiz to my class
Q 1/10
Score 0
Which of the following factors would most likely lead to competition among organisms in an ecosystem?
30
Diverse soil types
High availability of water
Limited food resources
Excess sunlight exposure
Q 2/10
Score 0
In a dense rainforest ecosystem, many smaller plants grow on the branches of tall trees rather than on the forest floor. These plants are most likely competing for which abiotic factor?
30
Presence of predators
Range of temperatures
Soil composition
Availability of light
10 questions
Q.
Which of the following factors would most likely lead to competition among organisms in an ecosystem?
1
30 sec
6.12(A)
Q.
In a dense rainforest ecosystem, many smaller plants grow on the branches of tall trees rather than on the forest floor. These plants are most likely competing for which abiotic factor?
2
30 sec
6.12(A)
Q.
A scientist observes two different species of desert shrubs growing far apart from one another. This spacing is most likely a result of competition for which abiotic factor?
3
30 sec
6.12(A)
Q.
Which of the following scenarios best illustrates competition for a biotic factor in an ecosystem?
4
30 sec
6.12(A)
Q.
Which of these changes to an abiotic factor would most likely increase competition for food among a population of herbivores?
5
30 sec
6.12(A)
Q.
A sudden drop in the range of temperatures in a lake causes a significant portion of the algae population to die off. How will this change in an abiotic factor most likely affect the fish that feed on the algae?
6
30 sec
6.12(A)
Q.
In a grassy meadow, several different species of songbirds nest in the same types of shrubs and eat the same species of insects. This situation will most likely lead to which of the following?
7
30 sec
6.12(A)
Q.
A gardener notices that many weeds are growing in a flowerbed, making the garden plants grow smaller and weaker. This is most likely because the weeds and flowers are competing for which abiotic factors?
8
30 sec
6.12(A)
Q.
Which of the following describes a population of organisms depending on an abiotic factor for survival?
9
30 sec
6.12(A)
Q.
In a forest ecosystem, a thick layer of decomposing leaf litter changes the soil composition by adding high levels of nitrogen. Small plants that require high nitrogen levels to grow will most likely experience which of the following?
