Ecosystem Lesson 2

Quiz
•
Science, Biology
•
5th Grade
•
Easy
Owen J
Used 13+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are bacteria classified in a forest ecosystem?
as consumers
as decomposers
as herbivores
as producers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Decomposers are important to the flow of energy in an ecosystem because they
are at the top of every food chain.
eat things other organisms do not eat
make up a large portion of the top layer of the soil.
break organic material into parts that can be reused.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?
They break down dead organisms to return nutrients to the soil.
They produce their own food for survival.
They play a role in preventing weathering and erosion.
They provide most of the energy to consumers.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A brown bear eats a variety of foods including berries, insects, and small animals. Which BEST describes a brown bear?
producer
herbivore
carnivore
omnivore
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Meadow voles are small mouse-like animals that eat plants and insects. Their niche in an ecosystem is a
omnivore.
herbivore.
producer.
scavenger.
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Plants in a forest need to obtain nutrients from the soil to survive. How do MOST of the nutrients get back in the soil once the forest plants have used them for growth?
Organic matter is recycled from dead organisms
Commercial fertilizers are applied by humans.
Solar radiation reaches the ground surface.
Rainwater drips off of living organisms
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Decaying plants and animals are important to an ecosystem because they
cause disease in living organisms.
reduce soil erosion.
recycle oxygen to the air.
return nutrients to the soil.
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