Population Ecology: Graphs, Carrying Capacity, Factors to Growth

This graph shows...

• Logistical Population Growth

• Exponential Population Growth

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This graph shows...

• Logistical population growth

• Exponential Population Growth

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The human population graph shown looks like (a)   growth.

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2 graphs of population growth, exponential and logistical, are shown. Logistical appears to be...

• Increasing without limits

• Alternating between increasing and decreasing

• Reaching it's peak and staying relatively stable

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The carrying capacity is the...

• Difference in final population from the initial population

• Lowest point in population growth

• Maximum number of organisms an environment can sustain

• Fastest portion of growth on the population graph

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The carrying capacity shown on this population graph is about...

• 2 million

• 1 million

• 1.75 million

• 1.5 million

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With carrying capacity, it is not a perfect line, and populations will overshoot the mark of "max" population. This causes the population to...

• Continue to rise

• Fall back down and permanently stay at a lower level

• Fluctuate down and up in cycles, staying close to carrying capacity

• Fluctuate randomly

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NGSS.MS-LS2-4

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Populations will fluctuate due to...

• Predator prey relationships

• Weather events

• Resources such as food, water, shelter/habitat

• All of these answers are correct

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If a population of rabbits has hit it's carrying capacity, you could say the graph of their population is...

• Exponential

• Logistical

• Demographic

• Unlimited

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Select all the following that are BIOTIC FACTORS to population growth...

• CO2 in the environment

• Predators in an ecosystem

• Parasites

• Average rainfall in a year

• Types of dissolved minerals in a stream

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