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WorksheetsEcology A
Total questions: 32
Worksheet time: 16mins
Name
Class
Date
1.
Soil is an example of...
a)
Biotic Factor
b)
Abiotic Factor
2.
A flock of 42 Canadian geese is which Level of Organization?
a)
Organism
b)
Population
c)
Community
d)
Ecosystem
3.
This picture represents which Level of Organization?
a)
Biome
b)
Ecosystem
c)
Population
d)
Community
4.
Horizon B represents which layer of soil?
a)
Topsoil
b)
Parent Material
c)
Subsoil
d)
Humus
5.
The relationship between a flea and a dog is an example of which interaction?
a)
Mutualism
b)
Parasitism
c)
Commensalism
d)
Competition
6.
Horizon C represents which layer of soil?
a)
Subsoil
b)
Humus
c)
Topsoil
d)
Parent Material
7.
Which of the following represents a biome according to the levels of organization?
a)
Squirrel
b)
Flock of geese
c)
A pond
d)
Rainforest
8.
Which is NOT part of the composition of soil?
a)
Humus
b)
Air
c)
Water
d)
Biotic Factors
9.
Anything that stops a population from growing is considered to be a...
a)
Abiotic Factor
b)
Limiting Factor
c)
Biotic Factor
d)
Carrying Capacity
10.
The maximum number of organisms that an environment or ecosystem can support is...
a)
A limiting factor
b)
carrying capacity
c)
population density
d)
immigration
11.
This picture is a....
a)
Energy Pyramid
b)
Food Web
c)
Food Chain
12.
This picture shows which kind of organism?
a)
Secondary Consumer
b)
Producer
c)
Primary Consumer
d)
Decomposer
13.
Two or more organisms that need the same resource at the same time describes which interaction?
a)
Symbiosis
b)
Parasitism
c)
Mutualism
d)
Competition
14.
The frog in this Food Web represents which Niche?
a)
Producer
b)
Primary Consumer
c)
Secondary Consumer
d)
Decomposer
15.
Horizon A represents which layer of soil?
a)
Humus
b)
Topsoil
c)
Subsoil
d)
Parent Material
16.
Which horizon would you find humus?
a)
A
b)
O
c)
C
d)
B
17.
Which of the following is the best example of an ecosystem?
a)
herd of deer
b)
pond
c)
gorilla
d)
desert
18.
Bacteria and mushrooms (fungi) are organisms of which Niche?
a)
Produers
b)
Decomposers
c)
First Level Consumer
d)
Secondary Level Consumer
19.
An organism's specific job or role in an ecosystem.
a)
adaptation
b)
niche
c)
habitat
d)
predator
20.
The arrows in a food chain or food web represent ______.
a)
trophic levels
b)
energy flow
c)
eating organisms
d)
increasing steps
21.
Food, water, shelter, and space are all considered to be...
a)
Limiting Factors
b)
Biotic Factors
c)
Abiotic Factors
d)
Natural Hazards
22.
Changes in ecosystems that affect the amount of resources available which prohibit populations from growing are...
a)
Food Chains
b)
Limiting Factors
c)
Population Density
d)
Carrying Capacity
23.
This picture is a....
a)
Food Chain
b)
Food Web
c)
Energy Pyramid
d)
Habitat
24.
This picture is a
a)
Food Chain
b)
Food Web
c)
Energy Pyramid
d)
Habitat
25.
What happens to energy as it moves up the food chain?
a)
It increases
b)
It decreases
c)
It stays the same
26.
Soil particles larger than 2mm are called...
a)
Gravel
b)
Silt
c)
Clay
d)
Sand
27.
Which soil particle is the smallest?
a)
Gravel
b)
Sand
c)
Clay
d)
Silt
28.
Which soil would you use to grow plants?
a)
Subsoil
b)
Humus
c)
Topsoil
d)
Parent Material
29.
Which soil pH is best for growing plants?
a)
pH 1-3
b)
pH 5-7
c)
pH 8-10
d)
pH 12-14
30.
How can populations grow?
a)
High birth rate and Immigration
b)
Low death rate and Emigration
c)
High birth rate and Emigration
d)
Low death rate and Immigration
31.
What is the carrying capacity of the rabbit population in this graph?
a)
5 rabbits
b)
40 rabbits
c)
60 rabbits
d)
65 rabbits
32.
List the soil particles from largest to smallest.
a)
clay-silt-sand-gravel
b)
gravel-sand-silt-clay
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