WorksheetsUnit 7 - Review II - Overpopulated
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
The largest number of individuals of a population that the environment can support is called the...
a)
exponential growth
b)
carrying capacity
c)
biodiversity
d)
limiting factor
2.
Plants and animals that have migrated to areas where they did not originate and often displace native species by out-competing them for resources are called...
a)
pollution
b)
habitat fragmentation
c)
invasive species
d)
overexploitation
3.
When a habitat is broken into smaller pieces, usually as a result of human activities, is called?
a)
pollution
b)
habitat fragmentation
c)
invasive species
d)
overexploitation
4.
In 1906, President Theodore Roosevelt created the Grand Canyon National Game Preserve which put a ban on all deer hunting and recruited the Forest Service to exterminate the predators of the deer. This is an example of what?
a)
pollution
b)
invasive species
c)
habitat fragmentation
d)
overexploitation
5.
What type of growth model is this?
a)
exponential growth
b)
logistic growth
c)
Type I curve
d)
Type III curve
6.
What is the carrying capacity of this graph?
a)
100
b)
500
c)
1000
d)
2000
7.
What is the carrying capacity of this graph?
a)
100
b)
500
c)
1000
d)
2000
8.
Food, water, sunlight, air, and soil are resources that are often __________.
a)
biodiversity sources
b)
not important to the environment
c)
limiting factors
d)
not found in an environment
9.
In this graph, the factor controlling the population of sea urchins is:
a)
competition of other herbivores
b)
the presence of predators
c)
the presence of predators and the availability of food
d)
the availability of food
10.
If the population of a certain predator DECREASES, there is often _______ its prey
a)
no impact on
b)
an increase in the population
c)
a decrease in the population
d)
great news for
11.
What role do limiting factors have in an environment?
a)
helps organisms to adapt to abiotic (non living) factors
b)
makes an environment grow larger
c)
stops a population from growing too large
d)
provided geographical boundaries for migration
12.
Biodiversity means...
a)
endangered species
b)
extinct species
c)
the rate of species decline
d)
the variety of species on Earth
13.
Which of the following would INCREASE the carrying capacity of an ecosystem?
a)
decrease in space
b)
increase in available food
c)
decrease of available water
d)
increase in disease
14.
Which of the following best describes the importance of biodiversity?
a)
It prevents habitat distruction
b)
It maintains a wide variety of organisms
c)
It allows populations to adapt to change
d)
It allows species to grow above their carrying capacity
15.
What does this image represent?
a)
invasive species
b)
limiting factors
c)
genetic variation
d)
carrying capacity
16.
Higher biodiversity results in...
a)
habitat destruction and fragmentation
b)
less stable ecosystem
c)
increased invasive species
d)
increased ability to adapt to change
17.
Without genetic diversity, a species will most likely...
a)
become extinct
b)
grow above its carrying capacity
c)
fight off invasive species
d)
become resistant to diseases
18.
Genetic variation would be greatest at point(s) _____ because _____.
a)
A and C; greater populations usually have more genetic variation
b)
C; genetic variation increases over time in most populations
c)
1. B; smaller populations provide an opportunity for genetic variation to thrive.
d)
A; the eventual decrease in population caused variation to decrease at points B and C
19.
According to the graph, in this pond where the fish live, temperature is a
a)
limiting factor
b)
source of energy
c)
source of biodiversity
d)
genetic factor
20.
Exotic or invasive species might cause all of the following EXCEPT...
a)
increased biodiversity
b)
loss of original species
c)
disease
d)
loss of biodiversity
100 %
