Question 1

A survivorship curve with the shape of a straight line descending over time indicates an organism whose chance of death

Accepted Answer

A)   is unrelated to its age.
B)   decreases as it gets older.
C)   increases as it gets older.D) None of the above
E) B) and C)

Question 2

Which of the following types of population growth patterns would best represent a group of elephants that enter a new, open habitat and become a stable part of that ecosystem?

Accepted Answer

A)   Exponential growth
B)   Irruptive growth
C)   Malthusian growth
D)   Chaotic or catastrophic growth
E)   Logistic growthF) B) and E)
G) A) and C)

Question 3

You are studying an organism that is fairly large, matures slowly, lives fairly long, and cares for its offspring. This organism probably has a(n)  _________________ population growth strategy.

Accepted Answer

A)   K-adapted
B)   R-adapted
C)   Irregular
D)   Catastrophic
E)   R-adapted and irregularF) C) and D)
G) All of the above

Question 4

The longest period of life that a given type of organism can reach is known as

Accepted Answer

A)   Survivorship
B)   Life span
C)   Life expectancy
D)   Mortality
E)   FecundityF) A) and E)
G) None of the above

Question 5

Which of the following types of population curves would best represent a group of elephants that enter a new, open habitat and become a stable part of that ecosystem?

Accepted Answer

A)   Norm-shaped curve
B)   S-shaped curve
C)   J-shaped curve
D)   Cyclic oscillation-shaped curve
E)   Survivorship curveF) A) and C)
G) A) and B)

Question 6

In cases of exponential growth rates, a population ________ each year.

Accepted Answer

A)   Increases at the same rate
B)   Is multiplied by a constant number
C)   Doubles
D)   Triples
E)   Increases by a constant number (one, ten, one hundred, etc.) , depending on the systemF) B) and D)
G) B) and C)

Question 7

Predation is considered to be a(n)  _______________ factor.

Accepted Answer

A)   Extrinsic
B)   Intrinsic
C)   Abiotic
D)   Biotic
E)   Extrinsic and bioticF) None of the above
G) D) and E)

Question 8

An organism's biotic potential is the maximum number of offspring that _________.

Accepted Answer

A)   survive to adulthood
B)   Its habitat can support
C)   It produces at one time
D)   It actually produces over its lifetimeE) A) and D)
F) B) and C)

Question 9

All of the following large-fish fisheries are being over fished except

Accepted Answer

A)   albacore tuna.
B)   bluefin tuna.
C)   yellowfin tuna.
D)   marlin.E) B) and C)
F) B) and D)

Question 10

Exponential growth refers to any pattern of increase of the size of a plant or animal population.

Accepted Answer

A) True 
 B)False

Question 11

Logistic strategies are better adapted to

Accepted Answer

A)   environments experiencing erratic, unpredictable swings in chemical or physical factors.
B)   situations where resource utilization can be maximized through a rapid increase in population size.
C)   organisms present in early successional stages.
D)   fairly stable environments.E) B) and C)
F) A) and D)

Question 12

_____________ growth rate describes a predictable rate of change at discrete points in time.

Accepted Answer

A)   Feedback
B)   Logistic
C)   Exponential
D)   Geometric
E)   OvershootF) B) and D)
G) A) and D)

Question 13

Logistic growth rates are those in which a population

Accepted Answer

A)   Grows very slowly when conditions are good and when conditions are not optimal
B)   Grows rapidly when conditions are good, then slows as it approaches carrying capacity
C)   Overshoots and dies back repeatedly
D)   Remains significantly below carrying capacity
E)   Grows at a constant rate of increase per unit timeF) A) and B)
G) A) and C)

Question 14

The first part of this scenario describes

Accepted Answer

A)   The founder effect or a demographic bottleneck
B)   Inbreeding
C)   Malthusian strategies
D)   Inbreeding or a genetic driftE) All of the above
F) C) and D)

Question 15

Genetic diversity is lost in a small population when

Accepted Answer

A)   The ecological diversity is high
B)   Genetic mutations cause some individuals in a population to be different in coloration or size
C)   Individuals from other populations are introduced into the population and the genes are diluted
D)   Only a few individuals survive a catastrophe
E)   Genetic mutations cause most individuals in a population to have similar genetic makeupF) C) and D)
G) All of the above

Question 16

Fishing down the food chain refers to

Accepted Answer

A)   using trawlers with large nets to harvest marine resources.
B)   the practice of fishing top predators nearly to extinction then moving on to smaller, less desirable fish.
C)   the practice of line fishing where only mature adult fish are harvested.
D)   the practice of fishing down at the bottom of the food chain.E) A) and D)
F) C) and D)

Question 17

Population growth patterns over time typically

Accepted Answer

A)   follow a smooth J curve form.
B)   follow a smooth S curve form.
C)   exhibit erratic fluctuations caused by readily discernable factors.
D)   exhibit complex patterns produced by complex causes.E) None of the above
F) C) and D)

Exam 6: Population Biology

A survivorship curve with the shape of a straight line descending over time indicates an organism whose chance of death

Correct Answer
verified

Logistic strategies are better adapted to

Correct Answer
verified

You are studying an organism that is fairly large, matures slowly, lives fairly long, and cares for its offspring. This organism probably has a(n) _________________ population growth strategy.

Correct Answer
verified

All of the following large-fish fisheries are being over fished except

Correct Answer
verified

The longest period of life that a given type of organism can reach is known as

Correct Answer
verified

_____________ growth rate describes a predictable rate of change at discrete points in time.

Correct Answer
verified

Which of the following types of population curves would best represent a group of elephants that enter a new, open habitat and become a stable part of that ecosystem?

Correct Answer
verified

Fishing down the food chain refers to

Correct Answer
verified

Population growth patterns over time typically

Correct Answer
verified

Which of the following types of population growth patterns would best represent a group of elephants that enter a new, open habitat and become a stable part of that ecosystem?

Correct Answer
verified

The first part of this scenario describes

Correct Answer
verified

Genetic diversity is lost in a small population when

Correct Answer
verified

An organism's biotic potential is the maximum number of offspring that _________.

Correct Answer
verified

Predation is considered to be a(n) _______________ factor.

Correct Answer
verified

Logistic growth rates are those in which a population

Correct Answer
verified

Exponential growth refers to any pattern of increase of the size of a plant or animal population.

Correct Answer
verified

In cases of exponential growth rates, a population ________ each year.

Correct Answer
verified

Exam 6: Population Biology

A survivorship curve with the shape of a straight line descending over time indicates an organism whose chance of death

Correct AnswerverifiedShow Answer

Logistic strategies are better adapted to

Correct AnswerverifiedShow Answer

You are studying an organism that is fairly large, matures slowly, lives fairly long, and cares for its offspring. This organism probably has a(n) _________________ population growth strategy.

Correct AnswerverifiedShow Answer

All of the following large-fish fisheries are being over fished except

Correct AnswerverifiedShow Answer

The longest period of life that a given type of organism can reach is known as

Correct AnswerverifiedShow Answer

_____________ growth rate describes a predictable rate of change at discrete points in time.

Correct AnswerverifiedShow Answer

Which of the following types of population curves would best represent a group of elephants that enter a new, open habitat and become a stable part of that ecosystem?

Correct AnswerverifiedShow Answer

Fishing down the food chain refers to

Correct AnswerverifiedShow Answer

Population growth patterns over time typically

Correct AnswerverifiedShow Answer

Which of the following types of population growth patterns would best represent a group of elephants that enter a new, open habitat and become a stable part of that ecosystem?

Correct AnswerverifiedShow Answer

The first part of this scenario describes

Correct AnswerverifiedShow Answer

Genetic diversity is lost in a small population when

Correct AnswerverifiedShow Answer

An organism's biotic potential is the maximum number of offspring that _________.

Correct AnswerverifiedShow Answer

Predation is considered to be a(n) _______________ factor.

Correct AnswerverifiedShow Answer

Logistic growth rates are those in which a population

Correct AnswerverifiedShow Answer

Exponential growth refers to any pattern of increase of the size of a plant or animal population.

Correct AnswerverifiedShow Answer

In cases of exponential growth rates, a population ________ each year.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified