Ecology Tiffany Jones

Quiz
•
Biology
•
9th - 12th Grade
•
Hard
+2
Standards-aligned
Charles Martinez
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of community is more resilient to chance?
Less diversity & fewer parts
Lass diversity & more parts
More diversity & fewer points
More diversity & more parts
Answer explanation
Chance are random environmental changes that might occur. The more diversity allows for the favorable characteristic to be present in the ecosystem.
Tags
NGSS.MS-LS2-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Keystone species have a…
Disproportionate affect relative to abundance
Proportionate affect relative to abundance
Answer explanation
A keystone species is a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Example: The sea otter maintains the kelp forest
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if a keystone species is removed…
Community becomes more diverse
Ecosystem collapses
No effect due to minor role
Population becomes less diverse
Answer explanation
A keystone species is a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically which affects the existing food web and the ecosystem could collapse.
Tags
NGSS.MS-LS2-2
NGSS.MS-LS2-4
NGSS.MS-LS2-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these does not contribute to maintain diversity?
Decomposer
Essential abiotic/biotic factor
Keystone species
Producer
Answer explanation
This is directly from the CED. Diversity refers to the species richness and the relative abundance. A decomposer will break down detritus (decomposing materials).
Tags
NGSS.MS-LS2-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of environment is resistant to change?
Low diversity, low component parts
High diversity, low component parts
Low diversity, high component parts
High diversity, high component parts
Answer explanation
A high diversity will allow for the favorable characteristic to be present in the ecosystem.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the keystone species is removed what happens?
Their predator population increases
Their predator population decreases
The ecosystem collapses
The ecosystem stabilizes
Answer explanation
The sea otter is a keystone species. When the sea otter is removed, the sea urchins that the sea otters prey upon increases in population which destroys the kelp forest. The sea otter keeps the sea urchin population in check so the kelp forest can be maintained.
Tags
NGSS.MS-LS2-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Abiotic factors
Factor that causes living organism to die
Factor that causes living organisms to reproduce
Living factor
Nonliving factor
Answer explanation
Abiotic factors are nonliving factors while biotic factors are living factors.
Tags
NGSS.MS-LS2-3
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Predators are an example of
Abiotic factors
Biotic factors
Answer explanation
Predators prey upon the other organisms. Since the predators are living and affect the prey population, they would be considered a biotic factor.
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if sea otters decrease?
Sea urchins increase, kelp increases
Sea urchins decrease, kelp increases
Sea urchins increase, kelp decreases
Sea urchins decrease, kelp decreases
Answer explanation
Sea otters eat sea urchins and sea urchins eat kelp. If the sea otter population decreases, the sea urchin population will increase which will decrease the kelp population.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-2
NGSS.MS-LS2-3
NGSS.MS-LS2-4
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