Changes in Ecosystems

Quiz
•
Biology
•
7th - 10th Grade
•
Easy
+2
Standards-aligned
Charles Martinez
Used 1+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The final and most stable stage of change in an ecosystem---
climax community
forest terminus
cyclic community
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
One of the first plants to colonize an area that has been harmed, leaving only barren ground---
lichens
honeysuckle bushes
oak trees
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which are the very first organisms to establish themselves after a fire completely destroys a forest?
Consumers
Lag species
Pioneers
Producers
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An examples of ecosystem change caused by humans---
A beaver builds a dam and blocks a stream, forming a pond. Organisms that rely on fast moving water die out. Over time, populations of pond-loving species increase in the area.
When a volcano erupts, the surrounding plants are destroyed and leave only bare lava. Pioneer species begin to grow on the lava. Over time, more and more different species reclaim this area.
Salvinia, a rootless, aquatic fern, floats on a lake surface forming dense mats. Some attaches to a boat. The boater takes his rig to another lake without removing the plant first.
Tags
NGSS.MS-ESS3-4
NGSS.MS-LS2-4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following is FALSE statement about ecosystems?
Ecosystems naturally change when species modify the ecosystem, such as when beaver build dams.
Ecosystems naturally change when the populations of organisms in the ecosystem change, such as after a new species of bird migrates to an island.
Ecosystems naturally change in response to a physical disturbance, such as after a forest fire.
Ecosystems rarely change in nature. Ecosystems only change in response to human disruptions.
Tags
NGSS.MS-LS2-4
NGSS.MS-LS2-5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Select the true statement
All species in an ecosystem are connected to one another.
All species in an ecosystem are independent of one another.
An ecosystem that is out of balance can never be returned to balance.
Tags
NGSS.MS-LS2-2
NGSS.MS-LS2-4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An example ecosystem change caused by humans ---
A fire burns down a large area of forest. Only soil remains. The next season, small plants sprout. Over time, new trees reclaim this area.
A herd of grazing buffalo tramples on tree seedlings and digs up the ground, destroying the young trees. In the bare patches, new plants grow.
Automobiles and factories burn fossil fuels, releasing carbon dioxide and pollutants into the atmosphere.
Tags
NGSS.MS-LS2-4
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A wide range of organisms in an area is called---
biodiversity
unstable
similarity
Tags
NGSS.MS-LS2-5
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Conditions for a stable ecosystem include all of these EXCEPT---
source of energy
producers using energy sources to synthesize organic compounds
materials cycling between organisms and environment
only one type of organism in an area
Tags
NGSS.MS-LS2-3
NGSS.MS-LS2-5
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