Community Ecology

Type of symbiosis: Skunks often live in burrows that have been dug and abandoned by woodchucks.

• commensalism

• mutualism

• parasitism

• predation

Tags

NGSS.MS-LS2-2

Starfish are probably the most important predator in the shallow ecosystem because they eat basically anything that they can come across. Their feeding activities control the whole ecosystem. This is an example of the starfish ___.

• habitat
• biotic factors
• tolerance level
• niche

Tags

NGSS.MS-LS2-4

Several species of warblers can live in the same spruce tree ONLY because they

• have different habitats within the tree.
• don’t eat food from the tree.
• occupy different niches within the tree.
• can find different temperatures within the tree.

Tags

NGSS.MS-LS2-4

All of the following statements concerning characteristics of predator-prey relationship are correct EXCEPT:

• Camouflage is an adaptation that protects prey.
• A rise in the population of predators is followed by a decreased in the population of prey.
• A rise in the population of prey is often followed by a rise in the population of predators.
• The population of predators most often eliminates the population of prey

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

When two species of cattails are grown together, they grow at different water depths and coexist.  When grown alone, they grow at similar water depths.  Which of the following is best demonstrated by the data?

• natural selection
• character displacement
• resource partitioning
• ecological succession

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Primary succession begins after... 

• a hurricane causes a river to flood its banks

• a farmer ploughs his fields to remove all existing plant life.

• a fire burns through a forest and ills all vegetation less than 1m tall.

• increasing temperatures causes a glacier to recede from an area which exposes rocky ground

Tags

NGSS.MS-LS2-3

secondary succession begins when

• lichens and mosses arrive on bare rock and begin to trap soil
• a complex, stable ecosystem is formed
• plants grow in an area previously devastated by a flood

• plants grow in a newly formed pond

Tags

NGSS.MS-LS2-4

What is the order of succession shown in this figure?

• A, B, C, D
• B, A, D, C
• C, D, A, B
• D, A, B, C

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

What type of succession is shown going from figure A to figure B?

• primary succession
• ecological succession
• secondary succession
• intermediate

Tags

NGSS.HS-LS2-6

In the mid 1900's, the wolves of Yellowstone were deeply affected by humans and their population significantly decreased-- making them endangered, and eventually removing them completely from the Yellowstone ecosystem. The removal of wolves, the apex predator, caused what to happen to the biodiversity within Yellowstone?

• A trophic cascade affected the entire food web in Yellowstone, causing some trophic levels to experience decreases, and others to grow rapidly.

• Biodiversity increased when the wolves disappeared and more species were able to flourish without the wolves.

• A trophic cascade irreversibly ruined the ecosystem in Yellowstone--destroying biodiversity forever.

• The biodiversity of the park was not affected when the wolves were removed.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4