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Worksheets2.8 Biotic & Abiotic Influences on Ecosystems
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
What is the carrying capacity of the graph?
a)
around 500
b)
more than 500
c)
less than 500
d)
around 600
2.
Which of the following would INCREASE the carrying capacity of an ecosystem?
a)
increase in predators
b)
disease
c)
increase in available food
d)
drought
3.
Which of the following is an EXAMPLE of a limiting factor?
a)
Water
b)
the color of the sky
c)
Migration
d)
Thick fur
4.
Which of the following is an example of competition?
a)
Two vultures fight over a dead rabbit
b)
A bear eats a fish
c)
Birds migrate south
d)
Pet dog keeps a man company
5.
When a population grows past the ecosystem's carrying capacity, what happens to the population?
a)
Continues to grow
b)
The population starts to die off to return to carrying capcity
c)
The population will go extinct due to lack of resources
d)
The population grows then finds a new carrying capacity
6.
A relationship between two species where one benefits while the other is harmed.
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Naturalism
7.
What best describes the relationship between bees and plants.
a)
mutualism
b)
parasitism
c)
neutralism
d)
commensalism
8.
A tapeworm and a cat have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
9.
Red-billed oxpeckers feed on parasites found on an Impala. The impala gets rid of parasites and the red-billed oxpeckers get yummy dinner. This is an example of _______.
a)
commensalism
b)
mutualism
c)
neutralism
d)
competition
10.
A tree blocks the light from the grass below. This is an example of _________.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
11.
Food, water, sunlight, air, soil are resources that are often __________.
a)
limiting factors
b)
wet
c)
messy
d)
found in rocks
12.
A relationship between two organisms in which one organism benefits and the other is unharmed
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
13.
An organism's ability to survive and reproduce under a range of environmental conditions is known as
a)
niche
b)
habitat
c)
tolerance
d)
symbiosis
14.
The number of individuals a habitat can sustain with the resources it has available
a)
Carrying capacity
b)
Limiting factors
c)
Resources
d)
Population
15.
Any thing or organism that regulates the size of a population is known as __________.
a)
a limiting measure
b)
a limiting factor
c)
carrying capacity
d)
biodiversity
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