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Worksheets3.2 Balance and Change in Ecosystems
Total questions: 16
Worksheet time: 19mins
Name
Class
Date
1.
What is the order of succession shown in this figure?
a)
A, B, C, D
b)
B, A, D, C
c)
C, D, A, B
d)
D, A, B, C
2.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
ecological succession
c)
secondary succession
d)
intermediate
3.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
4.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
5.
What is the name given to lichen or algae after a primary succession?
a)
pioneer species
b)
volunteer species
c)
founder species
d)
conqueror species
6.
After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?
a)
Lichens → Shrubs → Grasses → Trees
b)
Lichens → tree → shrubs→Grasses
c)
Grasses → Lichens → Shrubs → Trees
d)
Lichens → Grasses → Shrubs → Trees
7.
the process by which a new community forms where no community lived before
a)
resource
b)
invasive (non- native) species
c)
primary succession
d)
competition
8.
What are examples of pioneer species in a primary succession?
a)
Bushes and Shrubs
b)
Oak trees
c)
Mossess and Lichens
d)
A rose Bush
9.
Reaches a climax community quicker because soil is already present
a)
primary succession
b)
secondary succession
c)
both types of succession
10.
Final illustration (#8) shows
a)
pioneer species
b)
climax community
c)
only biotic factors
d)
only abiotic factors
11.
What is the most important function of pioneer species?
a)
To create rocks
b)
To create soil and add nutrients to the environment
c)
To look nice
d)
Food for animals
12.
Succession that occurs in an area with NO SOIL
a)
ecological succession
b)
primary succession
c)
secondary succession
d)
pioneer speciles
13.
What is one difference between primary and secondary succession?
a)
primary is slow and secondary is rapid
b)
secondary begins with lichens and primary begins on newly exposed surfaces
c)
secondary begins on soil and primary begins on newly exposed surfaces
d)
primary modifies the environment and secondary does not
14.
Natural disasters such as flooding and tornadoes are linked to ________________.
a)
primary
b)
secondary
c)
old field
d)
ecosystem
15.
Lichens & mosses are in a ___ relationship with each other as rock is broken down.
a)
primary
b)
secondary
c)
ecological
d)
mutualistic
16.
Which catastrophic event will most likely cause an ecosystem to begin primary succession?
a)
A tornado
b)
A volcanic eruption
c)
A flood
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