WorksheetsEcology
Total questions: 45
Worksheet time: 23mins
Name
Class
Date
1.
Which of the following is another word for a plant?
a)
autotroph
b)
heterotroph
c)
consumer
2.
Which of the following is an organism that eats only meat?
a)
herbivore
b)
carnivore
c)
omnivore
3.
Which is represented by all of the bullfrogs living around a pond?
a)
community
b)
habitat
c)
population
4.
What would most likely happen if the rabbit population was removed from the food chain grass —› rabbit —› fox?
a)
their would be more grass
b)
there would be less rabbits
c)
there would be more fox
5.
Which is an example of a parasitic relationship?
a)
a bee pollinates a flower
b)
a tapeworm takes nutrients from a dog
c)
an orchid lives in a tree but does not harm the tree
6.
In which type of relationship do both species benefit?
a)
parasitism
b)
mutualism
c)
commensalism
7.
Barnacles grow on whales. Whales give the barnacles a place to live but the barnacles do not help or harm the whale. Which type of relationship is this?
a)
commensalism
b)
mutualism
c)
parasitiesm
8.
An oxpecker bird eats ticks off of a zebra. The bird gets food from eating the ticks and the zebra has harmful parasites removed. Which type of symbiosis is this?
a)
mutualism
b)
parasitism
c)
commensalism
9.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
10.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
11.
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.
12.
relationship in which two species live closely together
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
13.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
14.
In this Food Web Pyramid Which type of consumer gets only 10% of the energy stored in plants?
a)
Herbivore
b)
Carnivore
c)
Omnivore
d)
Secondary Consumer
15.
What is the term for each step in the transfer of energy and matter within a biological community?
a)
energy path
b)
food web
c)
trophic level
d)
food pyramid
16.
The amount of energy that usually transfers from one trophic level to the next...
a)
10%
b)
20%
c)
80%
d)
50%
17.
An illustration that uses arrows to show the MANY possible directions in which matter and energy can pass through the organisms in an ecosystem.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
Succession Map
18.
The nonliving aspects of an ecosystem.
a)
Abiotic factors
b)
Biotic factors
19.
The living portions of the ecosystem.
a)
Biotic factors
b)
Abiotic factors
20.
A graphic illustration that shows each trophic level and the amount of useable energy contained within.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
All of these
21.
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
22.
As you move upward, from level to level, in an energy pyramid, energy _____.
a)
increases
b)
decreases
c)
stays the same
d)
increases exponentially
23.
What are the Abiotic factors in this image?
a)
water, sunlight, dirt, air
b)
birds and plants
c)
birds, water, dirt
d)
plants, water
24.
plants that convert energy from the sun
a)
decomposer
b)
primary consumer
c)
secondary consumer
d)
producer
25.
Study of interactions between organisms and their environment
a)
niche
b)
community
c)
ecology
d)
ecosystem
26.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
27.
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
28.
An individual belonging to a specific species
a)
Biotic
b)
Community
c)
Organism
d)
Reptile
29.
Organisms that look similar and can produce fertile offspring
a)
Species
b)
Fish
c)
Community
d)
Trees
30.
The area between the highest mountain and the deepest ocean where life can be found
a)
Biosphere
b)
Biome
c)
Farm
d)
Ecosystem
31.
What is the role of fungi in food webs?
a)
scavenger
b)
bacteria
c)
producer
d)
decomposer
32.
grass --> grasshopper --> sparrow --> hawk
In the food chain above, which organism would be found on level B of the energy pyramid shown?
a)
grass
b)
grasshopper
c)
sparrow
d)
hawk
33.
Series of steps in which organisms transfer energy by eating and being eaten
a)
foodweb
b)
consumer
c)
food chain
d)
omnivore
34.
Organisms that relies on other organisms for food; consumer
a)
herbivore
b)
decomposer
c)
heterotroph
d)
species
35.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
36.
Rabbits introduced into Australia over 100 years ago have become a serious pest to farmers. Rabbit populations increases so much that they displaced many native species of plant eaters. What is the most logical explanation for their increased numbers?
a)
Rabbits have a high death rate.
b)
There are few effective predators.
c)
Additional rabbit species have been introduced.
d)
There is an increase in rabbit competitors.
37.
What causes competition to occur in an environment?
a)
Good conditions make resources plentiful.
b)
Organisms struggle for a limited resource.
c)
Members of a population have different roles.
d)
A population falls below the environment’s carrying capacity.
38.
Without other changes to a population, which of the following will cause a population to increase in size?
a)
The birth rate equals the death rate.
b)
The birth rate is less than the death rate.
c)
The birth rate is greater than the death rate.
d)
The birth rate and the death rate both equal 0.
39.
Which of the following is an example of an abiotic limiting factor on population size?
a)
water availability
b)
Availability of food
c)
disease
d)
predation
40.
When individuals join a population
a)
Aliens
b)
migration
c)
Immigration
d)
Emigration
41.
Carrying Capacity is
a)
the capacity of what one person can carry per day
b)
how many animals you have in your daily bag limit at the end of the year
c)
wildebeest at a watering hole with zebras
d)
the maximum number of individuals that the environment can support
42.
What are two ways in which the environment can influence population size?
a)
competition and natural disasters
b)
biomes and ecosystems
43.
A part of the environment that prevents a population from growing to large is a/n______________
a)
abiotic factor
b)
biotic factor
c)
limiting factor
44.
One factor that drives population changes is
a)
the availability of resources.
b)
predation.
c)
both a and b.
d)
none of the above.
45.
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
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