Defines Population Unit 5 Lesson 19
Choose the best answer.
- 1.
Which statement best defines population?
- A.
A population is made up of all the living members of the same species in a given environment
- B.
A population is made up of certain living species in the popular environment
- C.
Population refers to people only
- D.
B and C are correct
Correct Answer
A. A population is made up of all the living members of the same species in a given environment -
- 2.
True or False. The more samples used by scientist, the more confusing and less accurate the estimate of the actual population size.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Scientists estimate populations of an organism using sample counts. The more samples use, the more accurate the estimate of the actual population size.Rate this question:
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- 3.
When estimating a population of small plant species in an area, what type of division do scientists use?
- A.
Transects
- B.
Quadrats
- C.
Quandrant
- D.
Quintuplets
Correct Answer
B. Quadrats -
- 4.
For larger plant species, scientist divide the are into sample units using _________.
- A.
Transects
- B.
Quadrats
- C.
Quadrants
- D.
Quintuplets
Correct Answer
A. Transects -
- 5.
True or False: Making a population estimate of animals is much more difficult than making a population estimate of plants.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Making a population estimate of animals is much more difficult because they void humans and are constantly moving in and out of a sampling area.Rate this question:
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- 6.
What do scientist do first to estimate the population of animals in an area?
- A.
They play the flute to attract all the animals in their direction then tag all of them.
- B.
They make quadrats and transects in the area.
- C.
Only one sample of each species is capture and tagged.
- D.
A sample of animals is captured and tagged.
Correct Answer
D. A sample of animals is captured and tagged. -
- 7.
______________ is the potential for all populations to grow exponentially.
- A.
Antibiotic Potential
- B.
Biotic Potential
- C.
Biographical Potential
- D.
None of the Above
Correct Answer
B. Biotic Potential -
- 8.
True or False. When all ideal conditions are met like sufficient food, shelter and water as well as space, the population can grow exponentially.
- A.
True
- B.
False.
Correct Answer
A. True -
- 9.
Which statement best defines environmental resistance?
- A.
Environmental resistance refers to the limiting factors in an environment that prevent populations from reaching their full biotic potential.
- B.
Examples of environmental resistance are overcrowding, limited food, predators, and other obstacles.
- C.
Environmental resistance is when the environment resists man-made pollution by excreting excess carbon dioxide in the air.
- D.
A and B are correct.
Correct Answer
D. A and B are correct. -
- 10.
__________ is the maximum population an environment can support.
- A.
Loading Capacity
- B.
Holding Capacity
- C.
Carrying Capacity
- D.
Equilibrium
Correct Answer
C. Carrying Capacity -
- 11.
___________ is when a population reaches its carrying capacity with its environment.
- A.
Equilibrium
- B.
Carrying Capacity
- C.
Mortality
- D.
None of the above
Correct Answer
A. Equilibrium -
- 12.
Which best defines natality.
- A.
Natality is the rate of reproduction.
- B.
Natality is the rate at which individuals die.
- C.
Natality is also known and birth rate.
- D.
A and C are correct
Correct Answer
D. A and C are correct -
- 13.
____________ is the rate at which individuals die. It is also known as death rate.
- A.
Mortality
- B.
Natality
- C.
Capacity
- D.
B and C are correct
Correct Answer
A. Mortality -
- 14.
Which statement best defines Immigration?
- A.
Immigration is the movement out of an area
- B.
Immigration is the movement out and about an area.
- C.
Immigration is the movement in an area.
- D.
Immigration is the movement around an area.
Correct Answer
C. Immigration is the movement in an area. -
- 15.
What is the growth phase?
- A.
The growth phase is the first section of the graph.
- B.
The growth phase is often seen on the a growth curve on a graph.
- C.
The growth phase is often divided into a lag phase.
- D.
All of the above
Correct Answer
D. All of the above -
- 16.
______________ is when the population size is still relatively small.
- A.
Growth Phase
- B.
Lag Phase
- C.
Exponential Phase
- D.
Tiny Phase
Correct Answer
B. Lag Phase -
- 17.
When do we see the exponential phase on a graph?
- A.
When there is a rapid growth in population.
- B.
When there is relatively small growth in population.
- C.
When the exponent is growing in the population
- D.
C is definitely incorrect.
Correct Answer
A. When there is a rapid growth in population. -
- 18.
_____________________________ occurs when the population total starts to level off due to the limiting factors in its environment.
- A.
Environmental Resistance Phase
- B.
Environmental exponential phase
- C.
Lag Phase
- D.
B and C are correct
Correct Answer
A. Environmental Resistance Phase -
- 19.
_____________ is the average increase per year that occurs over a given period of time as a percentage of the total population at the end of the period.
- A.
Average monthly increase
- B.
Average daily increase
- C.
Average annual increase
- D.
Average bi-annual increase
Correct Answer
C. Average annual increase -
- 20.
Which statements are true about the Average Annual Increase?
- A.
The average annual increase allows scientists to compare the growth of similar populations in different regions.
- B.
It is also used to predict future growth.
- C.
The average annual increase is not necessary in finding population of organisms.
- D.
A and B are correct
Correct Answer
D. A and B are correct -
- 21.
True or False. There are two factors limiting growth populations.
- A.
True, they are: Density Independent Factors and Density-dependent factors
- B.
False, there are three: Density Independent Factors, density-dependent factors and density semi-independent factors.
Correct Answer
A. True, they are: Density Independent Factors and Density-dependent factors -
- 22.
____________ is the number of individuals in a population in a given space.
- A.
Population Density
- B.
Population Independence
- C.
Lag Phase
- D.
Growth Phase
Correct Answer
A. Population Density -
- 23.
Which statements are true about density independent factors?
- A.
They are environmental conditions that influence population growth
- B.
Examples are weather patterns, fires, floods and earthquakes.
- C.
Density independent factors can be shown using J-shaped Curve
- D.
All of the above
Correct Answer
D. All of the above -
- 24.
The _________ is used to show the growth patterns for organisms controlled by density-independent factors
- A.
J-shaped growth curve
- B.
S-shaped growth curve
- C.
Sigmoidal growth curve
- D.
B and C are correct
Correct Answer
A. J-shaped growth curve -
- 25.
Which statements are true about density-dependent factors.
- A.
It is a type of control where the population's size increases, so does the demand for food.
- B.
Examples are organisms affected by density-dependent factors are large mammals such as whales.
- C.
All of the above
- D.
None of the above
Correct Answer
C. All of the above -
- 26.
What type of pattern of growth exhibit the population of larger animals that tend to have few offspring at a time, have a long lifespan and live in stable environments.
- A.
J-shaped growth curve
- B.
Sigmoidal or S-shaped growth curve
- C.
None of the above
Correct Answer
B. Sigmoidal or S-shaped growth curve -
- 27.
Competition is _____________ when it is between members of different species.
- A.
Intraspecific
- B.
Interspecific
- C.
Competitive
- D.
None of the above
Correct Answer
B. Interspecific -
- 28.
Competition is ______________ when it is between members of the same species.
- A.
Intraspecific
- B.
Interspecific
- C.
Compettive
- D.
None of the above
Correct Answer
A. Intraspecific -
- 29.
___________ occurs when two species cannot co-exist, which results in the extinction of one of those species
- A.
Competitive exclusion
- B.
Friendly exclusions
- C.
Extinction
- D.
None of the above
Correct Answer
A. Competitive exclusion -
- 30.
What are the two factors that will decrease population size.
- A.
Emigration and Death Rate
- B.
Immigration and Death Rate
- C.
Natality and Mortality
- D.
None of the above
Correct Answer
A. Emigration and Death Rate -
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Mar 21, 2022Quiz Edited by
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Mar 16, 2010Quiz Created by
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