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
- 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
- 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
- 4.For larger plant species, scientist divide the are into sample units using _________.
- A.
Transects
- B.
Quadrats
- C.
Quadrants
- D.
Quintuplets
- 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
- 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.
- 7.______________ is the potential for all populations to grow exponentially.
- A.
Antibiotic Potential
- B.
Biotic Potential
- C.
Biographical Potential
- D.
None of the Above
- 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.
- 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.
- 10.__________ is the maximum population an environment can support.
- A.
Loading Capacity
- B.
Holding Capacity
- C.
Carrying Capacity
- D.
Equilibrium
- 11.___________ is when a population reaches its carrying capacity with its environment.
- A.
Equilibrium
- B.
Carrying Capacity
- C.
Mortality
- D.
None of the above
- 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
- 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
- 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.
- 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
- 16.______________ is when the population size is still relatively small.
- A.
Growth Phase
- B.
Lag Phase
- C.
Exponential Phase
- D.
Tiny 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.
- 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
- 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
- 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
- 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.
- 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
- 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
- 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
- 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
Questions: 19 | Attempts: 12828 | Last updated: May 28, 2020
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