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WorksheetsMBHS Bio 1 Ecology Test 1
Total questions: 40
Worksheet time: 26mins
Name
Class
Date
1.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
2.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
3.
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
4.
Autotrophs make up the _______ level in all ecosystems.
a)
First
b)
Second
c)
Third
d)
Fourth
5.
A symbiotic relationship in which both organisms benefit
a)
competition
b)
mutualism
c)
commensalism
d)
predation
6.
A living relationship between two species in which one organism is harmed but not killed is called...
a)
mutualism
b)
commensalism
c)
parasitism
d)
competition
7.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
8.
The amount of energy that usually transfers from one trophic level to the next...
a)
10%
b)
20%
c)
80%
d)
50%
9.
Water temperature would be an example of ...
a)
a biotic factor
b)
an abiotic factor
c)
both biotic and abiotic factor
d)
neither biotic nor abiotic factor
10.
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
11.
Organisms that capture energy from inorganic, nonliving sources.
a)
Producers
b)
Consumers
c)
Detritivores
d)
Carnivores
12.
Another name for an autotroph is
a)
producer
b)
primary consumer
c)
heterotroph
d)
secondary consumer
13.
The relationship shown is .
a)
predator-prey
b)
producer-consumer
c)
carnivore-detritivore
d)
parasite-host
14.
An herbivore is always a
a)
producer
b)
primary consumer
c)
secondary consumer
d)
decomposer
15.
Which is true in this food web? .
.
.
a)
the mouse is an omnivore
b)
the snake is an herbivore
c)
the squirrel is a producer
d)
the frog is a primary consumer
16.
How much
energy is
transferred
from the
small fish
to the
large fish?
energy is
transferred
from the
small fish
to the
large fish?
a)
100%
b)
10%
c)
1%
d)
0.1%
17.
A bird builds a nest in a tree, but it does not harm the tree. This relationship is
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
18.
Which if the following is correct?
a)
consumers eat producers
b)
producers eat consumers
c)
producers eat decomposers
d)
herbivores eat animals
19.
If the secondary consumer in a food chain dies, what will happen?
a)
producer will increase
b)
producer will decrease
c)
primary consumer will decrease
d)
nothing
20.
How much energy from the plant plankton goes into the small fish, if the plant plankton starts out with 100 cal?
a)
100 cal
b)
10 cal
c)
1 cal
d)
0.1 cal
21.
Which of the following is NOT an abiotic factor?
a)
rocks
b)
water
c)
light
d)
plants
22.
Which way do the arrows point in a food web?
a)
to the organism being eaten
b)
to the organism eating
c)
toward the sun
d)
away from the decomposers
23.
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
24.
Which is not a biotic factor?
a)
bacteria
b)
protists
c)
water
d)
plants
25.
What is a group of organisms that are physically similar and can mate with each other and produce offspring that can mate and reproduce?
a)
community
b)
ecosystem
c)
niche
d)
species
26.
As you move upward, from level to level, in an energy pyramid, energy _____.
a)
increases
b)
decreases
c)
stays the same
d)
increases exponentially
27.
What shows a series of events in which one organism eats another and gets energy?
a)
food chain
b)
food web
c)
energy pyramid
d)
food map
37.
Which organisms in the food chain have the least available energy?
a)
large fish
b)
algae
c)
shark
d)
small fish
29.
In a tide pool, 15 species of invertebrates were reduced to 8 after one species was removed. The species was likely a(n)
a)
keystone species
b)
herbivore
c)
abiotic organism
d)
mutualistic organism
30.
A cow's herbivorous diet indicates that it is a(n)
a)
autotroph
b)
decomposer
c)
secondary consumer
d)
primary consumer
31.
Which of the following terms encompasses (includes) all of the others?
a)
primary consumers
b)
herbivores
c)
carnivores
d)
heterotrophs
32.
In a typical grassland community, which of the following is the fewest in number?
a)
hawk
b)
grass
c)
grasshopper
d)
snake
33.
These organisms can also be called herbivores because they eat plants or algae.
a)
secondary consumers
b)
primary consumers
c)
primary producers
d)
tertiary consumers
34.
A carnivore that eats herbivores is called a(n)
a)
primary producer
b)
primary consumer
c)
secondary consumer
d)
tertiary consumer
35.
What approximate percent of the energy found in a trophic level is lost as heat and is unavailable to the next trophic level?
a)
10%
b)
90%
c)
100%
d)
50%
36.
A mouse eats grass. A snake eats the mouse and an eagle eats the snake. What is the eagle?
a)
producer
b)
primary consumer
c)
secondary consumer
d)
tertiary consumer
37.
Which organisms in the food chain have the least available energy?
a)
large fish
b)
algae
c)
shark
d)
small fish
38.
In the food chain, how much energy will make it to the trophic level of the sharks if the producers have 100,000 calories?
a)
10 calories
b)
1 calorie
c)
100 calories
d)
1,000 calories
39.
Which trophic level would have the most organisms?
a)
producers
b)
primary consumers
c)
secondary consumers
d)
apex predators
40.
Organisms in trophic level 3 are
a)
decomposers
b)
herbivores
c)
carnivores
d)
producers
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