Changes in Ecosystems

Quiz
•
Science
•
6th Grade
•
Hard
+4
Standards-aligned
Melissa Jolley
Used 192+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Some islands are formed by volcanic eruptions, and the islands provide habitats for many organisms.
What is another way volcanic eruptions can benefit an ecosystem?
blocking sunlight with ash clouds
transporting seeds
providing fertile soil
maintaining a warm ocean temperature
Tags
NGSS.MS-ESS2-2
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The trees in a rainforest start to die. This would affect the animals and other plants of the rainforest because it would increase
rainfall.
flooding.
shelter.
food.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-3
NGSS.MS-LS2-4
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A large tree was blown over in a forest during a storm. The data table shows the number of plants and plant species in the immediate area before and after the large tree fell.
Which of the following explains why the population changed after this disruption?
The large tree covered up the soil after it fell and made the area unusable by other plants.
The impact of the large tree when it fell caused many of the smaller plants below it to die.
The gap created when the large tree fell allowed sunlight to reach the previously shaded forest floor.
The large tree released many of its seeds when it fell and those seedlings replaced the tree.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A variety of small animals and insects can live in a mountain tundra ecosystem. The ground in such places is often rocky with very little soil. The plants that grow there are fragile and grow slowly.
What would most likely happen in the ecosystem if many people carelessly trampled the tundra and killed off the plants?
The new plants would grow more quickly.
The populations of many animal species would decrease.
The amount of soil in the tundra would increase.
The number of rocks in the tundra would increase.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
During a hot summer drought, an area receives very little rain. The animals that live in the area will probably
decrease in number and become extinct.
increase in number, but return to normal after the drought.
increase in number, and then become extinct.
decrease in number, and may migrate to another location
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ice ages can cause the extinction of animals because of a lack of
oxygen.
glaciers.
precipitation.
food.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a particular ecosystem, the climate undergoes a gradual change, resulting in increased rainfall. Mosquitoes living in the ecosystem depend on water for reproduction.
How will this climatic change most likely affect the mosquitoes in this ecosystem?
It will not affect the survival of the mosquitoes in any way.
It will force the mosquitoes to migrate to other ecosystems.
It will lead to an increase in the mosquito population.
It will lead to a decrease in the mosquito population.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
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