Edmentum Unit 5 Unit Mastery Test
UPDATED Exam Questions and
CORRECT Answers
What is the measurement of a population per unit area? - CORRECT ANSWER- population
density
Overcrowding is an example of - CORRECT ANSWER- density dependent factor
What is a survivorship curve? - CORRECT ANSWER- It shows the number of individuals
living at each age interval plotted versus time. It helps to compare life histories of different
populations. You can compare the life histories of birds, frogs, and humans at the same time.
It is also known as a mortality table.
random population distribution - CORRECT ANSWER- haphazardly located individuals,
with no pattern
clustered population distribution - CORRECT ANSWER- Clustered population is where
many people are living in the small area. ..
scattered population distribution - CORRECT ANSWER- A scattered population is a
population distribution when a small amount of people are living in a big area. Scattered
populations have limited resources and only a little amount of people are supported.
Claire, an ecologist, is finding it difficult to identify an interaction in nature because of
changing environmental conditions and the complex indirect interactions of multiple species.
Which interaction is Claire trying to find in nature?
A. interference competition
B. apparent competition
C. exploitation competition
D. predation
E. symbiosis - CORRECT ANSWER- B. apparent competition
, Commensalism - CORRECT ANSWER- A relationship between two organisms in which one
organism benefits and the other is unaffected
predation - CORRECT ANSWER- An interaction in which one organism kills another for
food.
exploitation competition - CORRECT ANSWER- organisms compete indirectly through the
consumption of a limited resource
mutualism - CORRECT ANSWER- A relationship between two species in which both species
benefit
parasitism - CORRECT ANSWER- A relationship between two organisms of different
species where one benefits and the other is harmed
What are the regions in the environment that provide basic needs, such as food, shelter, mates
for reproduction, and protection, for survival of living organisms? - CORRECT ANSWER-
Habitats are regions in the environment that provide basic needs, such as food, shelter, mates
for reproduction, and protection, for survival of living organisms.
In a certain region, children are considered economic benefits. A rising trend in the fertility
levels of the region is observed. Last year the fertility rate in that region was four children per
woman. It is predicted that the fertility rate is going to be six children per woman due to
increasing poverty.
If the predictions are true then the population of that region will increase resulting in an
INCREASE or DECREASE in food insecurity - CORRECT ANSWER- INCREASE
According to United Nations predictions, what will be the total population of the world by
2100?
A. 9 billon
B. 10 billon
C. 11 billon
D. 40 billon
E. 8 billon - CORRECT ANSWER- C. 11 billon
UPDATED Exam Questions and
CORRECT Answers
What is the measurement of a population per unit area? - CORRECT ANSWER- population
density
Overcrowding is an example of - CORRECT ANSWER- density dependent factor
What is a survivorship curve? - CORRECT ANSWER- It shows the number of individuals
living at each age interval plotted versus time. It helps to compare life histories of different
populations. You can compare the life histories of birds, frogs, and humans at the same time.
It is also known as a mortality table.
random population distribution - CORRECT ANSWER- haphazardly located individuals,
with no pattern
clustered population distribution - CORRECT ANSWER- Clustered population is where
many people are living in the small area. ..
scattered population distribution - CORRECT ANSWER- A scattered population is a
population distribution when a small amount of people are living in a big area. Scattered
populations have limited resources and only a little amount of people are supported.
Claire, an ecologist, is finding it difficult to identify an interaction in nature because of
changing environmental conditions and the complex indirect interactions of multiple species.
Which interaction is Claire trying to find in nature?
A. interference competition
B. apparent competition
C. exploitation competition
D. predation
E. symbiosis - CORRECT ANSWER- B. apparent competition
, Commensalism - CORRECT ANSWER- A relationship between two organisms in which one
organism benefits and the other is unaffected
predation - CORRECT ANSWER- An interaction in which one organism kills another for
food.
exploitation competition - CORRECT ANSWER- organisms compete indirectly through the
consumption of a limited resource
mutualism - CORRECT ANSWER- A relationship between two species in which both species
benefit
parasitism - CORRECT ANSWER- A relationship between two organisms of different
species where one benefits and the other is harmed
What are the regions in the environment that provide basic needs, such as food, shelter, mates
for reproduction, and protection, for survival of living organisms? - CORRECT ANSWER-
Habitats are regions in the environment that provide basic needs, such as food, shelter, mates
for reproduction, and protection, for survival of living organisms.
In a certain region, children are considered economic benefits. A rising trend in the fertility
levels of the region is observed. Last year the fertility rate in that region was four children per
woman. It is predicted that the fertility rate is going to be six children per woman due to
increasing poverty.
If the predictions are true then the population of that region will increase resulting in an
INCREASE or DECREASE in food insecurity - CORRECT ANSWER- INCREASE
According to United Nations predictions, what will be the total population of the world by
2100?
A. 9 billon
B. 10 billon
C. 11 billon
D. 40 billon
E. 8 billon - CORRECT ANSWER- C. 11 billon
