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Exam 30: Ecology and Populations

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Question 1

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Which of the following is an example of exponential growth?

A) 2000 $\rarr$ 2000 $\rarr$ 2000
B) 1500 $\rarr$ 1600 $\rarr$ 1700
C) 1500 $\rarr$ 1550 $\rarr$ 2010
D) 1000 $\rarr$ 1500 $\rarr$ 2000
E) 2000 $\rarr$ 1500 $\rarr$ 1000

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Question 2

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During a recent hurricane,25 individuals of the same butterfly species were blown onto a barrier island in southern Florida.After several years,the population stabilized with approximately 150 individuals.The butterflies and the flowers that they require for food would be considered an example of a(n)

A) organism.
B) population.
C) community.
D) ecosystem.
E) biosphere.

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Question 3

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A population growth curve that exhibits both exponential growth and a stable equilibrium phase is

Equilibrium populations tend to exhibit a Type III survivorship curve.

During a recent hurricane,25 individuals of the same butterfly species were blown onto a barrier island in southern Florida.In general,each female butterfly lays more than 50 eggs each year,but only a few individuals survive for more than a month after hatching from the eggs.What type of survivorship curve most accurately represents this species?

Which of the following is true about populations with a negative growth rate?

Which statement about ecology and environmental science is correct?

Which of the following is true about the current state of human population growth?

During a recent hurricane,25 individuals of the same butterfly species were blown onto a barrier island in southern Florida.The hurricane which lead to the arrival of the butterflies on the island is an example of a(n) ________ factor.

All of the following are true of BOTH logistic growth and exponential growth EXCEPT

Exponential growth

Which of the following descriptions is NOT associated with the correct survivorship curve?

A butterfly species has very wide distribution across southern Florida.In addition,the adults and caterpillars can use a wide array of plant species as a food source and also tolerant a broad range of temperatures.Based on these criteria,this species is unlikely to face extinction in the immediate future.

Which of the following is true about the majority of LDCs?

During a recent hurricane,25 individuals of the same butterfly species were blown onto a barrier island in southern Florida.When the butterflies first arrived on the island they did not have to compete for access to food or space.In addition,there were few natural predators such as wasps and birds which were common on the mainland.As a result,the island population will have a __________ biotic potential compared to the mainland population.

All of the following are true about equilibrium populations EXCEPT

Based upon the features listed,which of the following species is the most likely to go extinct?

Jacob is studying a population of wrens in Michigan.During one severe winter,5% of the birds died due to starvation and cold temperatures.This is an example of

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

Which of the following populations has the greatest biotic potential?