Factors Impacting Population Change

Which point on the graph represents carrying capacity?

• A
• B
• C
• D

Tags

NGSS.HS-LS2-1

Which of the following represents the combination of all relevant environmental variables in which a species or population lives?

• clade
• hybrid zone
• phylogeny
• ecological niche

Which letter shows the the exponential growth of a population?

• A
• B
• C
• D

There are 200 bears in an area.  10 emigrate, 15 immigrate, 10 are born and 20 die.  How many are left?

• 195
• 205
• 200
• 260

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Refer to a population of 500 that experiences 55 births and 5 deaths during a one year period.
If the population maintains the current growth pattern, a plot of its growth would resemble which of the following?

• exponential growth
• fluctuating growth
• K-selected growth
• logistic growth

Tags

NGSS.HS-LS2-6

Which of the following correctly describes the interactions between T. castaneum and the parasite.

• The parasite decreases the population density of beetles in each culture dish.
• The parasite increases the population density of beetles in each culture dish.
• The parasite has no effect on the population density of the beetles.

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NGSS.HS-LS2-6

NGSS.HS-LS4-5

What is the rate of change for the population grown without a parasite from day 200 to day 400?

• 200 days
• a loss of approximately 15 beetles/200 days
• a loss of approximately 30 beetles/200 days
• 30 beetles

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

Which of the following is an example of a density-independent limiting factor?

• A parasite
• A natural disaster
• A decrease in prey
• A food shortage

__________ growth shows growth of a population under environmental constraints (carrying capacity-K) that sets a maximum population size 

• logistic
• exponential
• niche
• uniform

Tags

NGSS.HS-LS2-1

Which of the following statements would NOT be true of a population that is remaining at its carrying capacity?

• Birth rate is equal to the death rate.
• Immigration and emigration are equal.
• Temperature and rainfall patterns are consistent.
• The number of predators in the area is decreasing due to a viral disease.

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

NGSS.HS-LS2-6