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WorksheetsEcology
Total questions: 42
Worksheet time: 40mins
Name
Class
Date
1.
Green plants are
a)
producers
b)
consumers
c)
herbivores
d)
omnivores
2.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
3.
Autotrophs make up the _______ level in all ecosystems.
a)
First
b)
Second
c)
Third
d)
Fourth
4.
which symbiosis is this
a)
parasitism
b)
mutualism
c)
commensalism
d)
nonalism
5.
This is an image of a _________.
a)
consumer
b)
scavenger
c)
decomposer
d)
producer
6.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
7.
A living relationship between two species in which one organism is harmed is called...
a)
mutualism
b)
commensalism
c)
parasitism
d)
niche
8.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms.
d)
How carnivores get their food.
9.
The image provided is an example of a(n):
a)
Carnivore
b)
Herbivore
c)
Producer
d)
Autotroph
10.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
11.
relationship in which two species live closely together
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
12.
In order to reduce consumption of nonrenewable resources, humans could:
a)
burn coal to heat houses instead of using oil
b)
heat household water with solar radiation
c)
increase industrialization
d)
use a natural-gas grill to barbeque instead of using charcoal
13.
Millions of acres of tropical rain forest are being destroyed each year. Which change would most likely occur over time if the burning and clearing of these forests were stopped?
a)
an increase in the amount of atmospheric pollution produced
b)
a decrease in the source of new medicines
c)
an increase in the amount of oxygen released into the atmosphere
d)
a decrease in the number of species
14.
Deforestation of areas considered to be rich sources of genetic material could limit future agricultural and medical advances due to
a)
the improved quality of the atmosphere
b)
an increase in the rate of evolutionary change
c)
the maintenance of dynamic equilibrium
d)
the loss of biodiversity
15.
The Audubon Society recently released a study that showed that the populations of some bird species have decreased in number by as much as 50% since 1966. The study eliminated food and water shortages and natural cycles as causes for the decrease. Which factor might have contributed to this decline?
a)
overproduction of bird offspring
b)
fewer predators
c)
destruction of natural habitats
d)
an energy-rich diet
16.
Water temperature would be an example of ...
a)
A biotic factor
b)
An abiotic factor
17.
What is global warming?
a)
the average temp. of the lower atmosphere increases
b)
the total amount of gas that is emitted into the atmosphere
c)
the average weather for a particular region
d)
abnormally dry weather
18.
Most greenhouse gas emissions come from burning fossil fuels.
a)
True
b)
False
19.
symbiotic relationship in which one organisms benefits and the other organism is not affected
a)
invasive (non-native) species
b)
mutualism
c)
nitrogen fixation
d)
commensalism
20.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
21.
A place where an organism lives.
a)
Terrain
b)
Habitat
c)
Community
d)
Population
22.
A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.
a)
Population
b)
Community
c)
Habitat
d)
Ecosystem
23.
diagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heat
a)
succession
b)
cellular respiration
c)
energy pyramid
d)
biochemical cycle
24.
largest number of individuals of a population that the environment can support
a)
carrying capacity
b)
primary succession
c)
denitrification
d)
mutualism
25.
a relationship between two in which one species, the predator, feeds on the other species, the prey
a)
chemosynthesis
b)
predation
c)
cellular respiration
d)
commensalism
26.
plants and animals that have migrated to areas where they did not originate; often displace native species by out-competing them for resources
a)
acid rain
b)
biochemical magnification
c)
invasive (non-native) species
d)
nitrogen fixation
27.
Members of a species in a defined area
a)
Ecosystem
b)
community
c)
biodiversity
d)
population
28.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
29.
All the dear in a forest would be considered
a)
Community
b)
Population
c)
Habitat
d)
Ecosystem
30.
a struggle between organisms for limited resources and determines the size and location of populations
a)
Competition
b)
Cooperation
c)
Niche
d)
Adaptation
31.
As the populations of 2nd and 3rd level consumers decrease in a community, the level of competition for food will
a)
stop
b)
stay the same
c)
increase
d)
decrease
32.
The major role of bacteria, fungi and other decomposers in an ecosystem is to
a)
Produce food for the consumers
b)
Keep Soil from eroding
c)
Recycle nutrients
d)
All of the above
33.
Which is not an example of a scavenger, animal that feeds on dead animals?
a)
Turkey Vulture
b)
Coyote
c)
Crow
d)
Bear
34.
In the picture who is the predator?
a)
Owl
b)
Mouse
c)
Evergreen Tree
d)
None of the above
35.
In 1980 the wolf population outnumbered the moose population. What can you assume was occurring between the wolves of this population?
a)
Cooperation for prey
b)
Competition for prey
c)
Interdependence for prey
d)
Symbiotic Relationship with prey
36.
This graph shows the following relationship
a)
Carrying Capacity
b)
Mutualism
c)
Commensalism
d)
Predator and Prey
37.
Most ecological problems today are caused by
a)
Biological diversity
b)
Humans
c)
Aliens
d)
Sun
38.
Organisms that share the same niche
a)
Compete for food and space
b)
Populations decrease
c)
Have the same job or purpose
d)
All of the above
39.
Greatest threat to biological diversity
a)
Pollution
b)
Global Warming
c)
Deforestation
d)
Farming
40.
Increase in Algae growth comes from __________ being added through runoff of fertilizers from yards or farms
a)
Oxygen
b)
Carbon
c)
Phosphorous
d)
Nitrogen
41.
The more we conserve the more _______we will have.
a)
resources
b)
competition
c)
parasitism
d)
greenhouse effect
42.
Which is not a good farming practice?
a)
Over plowing
b)
Crop Rotation
c)
Using natural fertilizers and pesticides
d)
Keeping trees and other vegitation near fields
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