Ecology Review 2024

Which of the following would be considered a biotic factor?

• Temperature

• Fertilizer

• Bacteria

• PH levels

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is the main source of energy for all living things

• producers

• the sun

• consumers

• caffeine

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What effect on a population occurs when resources cannot be replenished at the rate they are being used?

• population decline

• population incline

• population stays constant

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following would be an density independent factor in an aquatic ecosystem?

• an increase of predators in the area

• The presence of disease causing bacteria in the area

• an increase in temperature of the water

• The availability of food in the area

Photic zones have many producers because sunlight is able to penetrate the water to a certain point, which of the following determines when this converts to an aphotic zone?

• waters depth

• the distance from the shoreline

• the longitude and latitude on the map

• the presence photosynthetic organisms

Which of the following best defines secondary succession

• Natural disaster destroys and ecosystem but does not damage the soil

• Random event eliminates half the population decreasing genetic diversity

• Volcanic Eruption creates a new island in the ocean where lichen and moss are present

• A glacier takes the soil in the area with it after erupting.

Invasive species alter the ecosystem by ___________in number quickly,this leads to _____ food for the native  species. 

• increasing ; less

• decreasing; more

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the carrying capacity of the graph?

• 1000

• 8000

• 800

• 600

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the carrying capacity of the graph?

• around 500

• more than 800

• less than 300

• around 700

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

In the energy pyramid here, which organisms have the most energy available?

• Producers
• Carnivores
• Herbivores
• Top Predator

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NGSS.MS-LS1-6

NGSS.MS-LS2-3