Unit 8 Ecosystems

Quiz
•
Biology
•
9th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A stable ecosystem would not contain
materials being cycled
oxygen
decomposers
more consumers than producers
Tags
NGSS.MS-LS2-3
NGSS.MS-LS2-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A forest fire destroyed a forest. For many years, only small plants could grow. Slowly, shrubs and trees began to grow. These changes are an example of
manipulation of genes
evolution of a species
ecological succession
equilibrium
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not an example of a density-independent limiting factor?
disease
human activities
severe weather
natural disasters
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A bird builds its nest in spiny plants like cacti to protect its young from predators such as the raven. The cacti are not helped nor harmed by these birds in any way. Which type of relationship does this demonstrate?
commensalism
parasitism
mutualism
predation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A serious threat to biodiversity is
maintenance of food chains
competition within a species
a stable population size
habitat destruction
Tags
NGSS.MS-LS2-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following includes biotic and abiotic factors in an ecosystem as well as behaviors such as food eaten, temp. tolerated, time of day active, etc.
habitat
niche
population
community
Tags
NGSS.MS-LS2-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following organisms does not carry out heterotrophic nutrition?
bird
mouse
squirrel
alga
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