WorksheetsEcology 4
Total questions: 35
Worksheet time: 22mins
Name
Class
Date
1.
Carrying capacity is represented by which letter?
a)
r
b)
L
c)
K
d)
c
2.
Which dispersion pattern usually is a result of resources not being evenly spread out in the environment?
a)
Uniform
b)
Random
c)
Clumped
d)
Bill Murray
3.
What will happen to the population when the death rate is larger than the birth rate?
a)
grow
b)
shrink
c)
stay the same
d)
None of these
4.
What will happen to the population when the birth rate is larger than the death rate?
a)
grow
b)
shrink
c)
stay the same
5.
Any abiotic or biotic factor in an ecosystem that causes a population’s size to slow or decrease is a ____________ factor.
a)
growth
b)
limiting
c)
carrying
d)
density dependent
6.
Which survivorship curve represents a species where the individuals die at equal rates at every age?
a)
Type 1
b)
Type 2
c)
Type 3
7.
The graph of logistic growth can be described as...
a)
S-shaped
b)
J-shaped
c)
W-shaped
d)
U-shaped
8.
An environmental factor such as predation, disease, and competition that depends on the number of members in a population per unit
a)
dispersion
b)
density- independent factor
c)
density- dependent factor
d)
population growth rate
9.
An environmental factor such as storms and extreme heat or cold that affects population regardless of their density
a)
density- dependent factor
b)
population density
c)
dispersion
d)
density- independent factor
10.
Exponential population growth leads to this kind of graph
a)
S curve
b)
J curve
c)
M curve
d)
W curve
11.
The highest rate of reproduction possible
a)
population
b)
limiting factor
c)
biotic potential
d)
carrying capacity
12.
Which of the following is a density-independent limiting factor?
a)
disease
b)
emigration
c)
earthquake
d)
parasitism
13.
Food, predators, mates are examples of _______ factors.
a)
biotic
b)
abiotic
c)
density dependent
d)
density independent
14.
Temperature, sunlight, and water are examples of _______ factors.
a)
biotic
b)
abiotic
c)
density dependent
d)
density independent
15.
The ability to produce an abundance of offspring or new growth is called
a)
fecundity
b)
fertility
c)
reproductivity
d)
productivity
16.
A ________________ is a group of animals of the same species, identified by a common characteristic (usually age), which are studied over a period of time as part of a scientific or medical investigation.
a)
sample
b)
community
c)
cohort
d)
group
17.
The lines on this graph are called
a)
selection curves
b)
patterns of growth
c)
limiting factors
d)
survivorship curves
18.
A species with a low number of offspring and high parental care is
a)
r selected
b)
K selected
19.
A species that has a large number of offspring and low parental care is
a)
r selected
b)
K selected
20.
The pattern of survival and reproduction events typical for a member of the species
a)
Life history
b)
Niche
c)
Survivorship curve
d)
Fecundity
21.
Thomas Malthus believed
a)
Human beings are actually food crops for a distant alien race that will return soon for the harvest
b)
Human beings can continue to populate exponentially forever
c)
Human beings will one day run out of resources and thereby be limited
d)
Human beings don't follow the same population patterns as other species
22.
Which stage of the Demographic Transition Model? Birthrate remains high, death rate begins to fall, total population increasing
a)
Stage 1
b)
Stage 2
c)
Stage 3
d)
Stage 4
23.
Which stage of the Demographic Transition Model shows high birth and death rates?
a)
1
b)
2
c)
3
d)
4
24.
In which stage of the Demographic Transition Model does the birth rate gradually decrease?
a)
1
b)
2
c)
3
d)
4
25.
In which stage of the Demographic Transition Model does the populations stabilize?
a)
2
b)
3
c)
4
d)
5
26.
In which stage of the Demographic Transition Model is the death rate higher than the birth rate?
a)
2
b)
3
c)
4
d)
5
27.
In _____________ distribution, organisms are spread out in a fairly regular pattern.
a)
clumped
b)
uniform
c)
random
d)
squirrel
28.
__________________ distribution occurs where resources are distributed evenly or sporadically.
a)
clumped
b)
uniform
c)
random
d)
potato
29.
A _______________ is a situation that involves losing one quality, aspect or amount of something in return for gaining another quality, aspect or amount.
a)
dispersion
b)
selection
c)
exchange
d)
trade-off
30.
the process of change in the living parts of the ecosystem
a)
ecological succession
b)
primary succession
c)
climax community
d)
pioneer speciles
31.
succession that occurs in an area with no soil
a)
ecological succession
b)
primary succession
c)
secondary succession
d)
pioneer speciles
32.
succession that occurs in an area where soil is already present
a)
ecological succession
b)
primary succession
c)
secondary succession
d)
pioneer speciles
33.
the first organisms that appear in an ecological community
a)
ecological succession
b)
primary succession
c)
secondary succession
d)
pioneer speciles
34.
a stable ecological community that has reached equilibrium
a)
ecological succession
b)
climax community
c)
secondary succession
d)
pioneer speciles
35.
ends in a climax community
a)
primary succession
b)
secondary succession
c)
both types of succession
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