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WorksheetsUnit Check
Total questions: 22
Worksheet time: 26mins
Name
Class
Date
1.
Woodpeckers, raccoons, hawks, and bacteria are some of the different types of organisms living in a forest. At what level of organization can a study of interactions among these organisms be done?
a)
community
b)
niche
c)
population
d)
species
2.
Study the diagram showing two organisms. Which statement best describes a niche for one of the organisms?
a)
The tree and bird both compete for oxygen.
b)
The tree provides shelter for the bird and uses water from the soil.
c)
The bird and tree both exist in the same ecosystem.
d)
The bird adapts to the tree each season as the tree loses or grows leaves.
3.
What is the relationship between particle size and permeability?
a)
As particle size increases, the permeability decreases.
b)
As particle size increases, the permeability increases.
c)
As permeability decreases, the particle size decreases.
d)
As permeability increases, the particle size remains constant.
4.
Which organism is a link between an aquatic food web and a terrestrial food web?
a)
clam
b)
dolphin
c)
penguin
d)
shark
5.
Which characteristic distinguishes a population from higher levels of organization?
a)
The organisms live in different areas.
b)
The organisms can breed with each other.
c)
The organisms compete with each other for food.
d)
The organisms depend on each other for survival.
6.
The table gives details of soil samples collected from different regions. Which soil sample would have the most gritty texture?
a)
loam
b)
sandy clay loam
c)
silt loam
d)
clay
7.
Which sequence categorizes the five levels of ecological organization from least inclusive to most inclusive?
a)
biosphere, ecosystem, population, community, organism
b)
ecosystem, biosphere, community, population, organism
c)
organism, community, population, ecosystem, biosphere
d)
organism, population, community, ecosystem, biosphere
8.
The diagram shows a forest environment and several organisms that live there. If rainfall in the area is less than expected, what is the most likely result on the ecosystem?
a)
More deer and rabbit will immigrate into the area.
b)
Water will become a limiting factor for all organisms.
c)
The birth rate will increase for the rabbit and bird population.
d)
The organisms will adapt in order to survive with less water.
9.
The table shows the various levels of organization of organisms on Earth.
Which order represents the relationship among these levels of organization?
Which order represents the relationship among these levels of organization?
a)
Z, X, Y, W
b)
Y, X, W, Z
c)
W, Z, X, Y
d)
X, Y, W, Z
10.
Heavy floods bring eroded soil, dirt, and debris into a river, increasing the turbidity and the temperature of the water. What effect does increasing turbidity have on aquatic life forms?
a)
Muddy water will make it easier for predators to find food.
b)
Warmer water will help fish reproduce.
c)
An decrease in nutrients will help plants grow.
d)
A lack of sunlight will make it difficult for plants to grow.
11.
Which scenario describes a population?
a)
all of the mice living in a barn
b)
a squirrel eating acorns
c)
a log providing shelter for beetles, spiders, and snakes
d)
all of the sunfish, bass, and catfish living in a lake
12.
What would be considered a biotic factor for a frog's habitat?
a)
the algae where the frog lays its eggs
b)
the air that the frog breathes
c)
the rocks on which the frog suns itself
d)
the water in which the frog lives
13.
Soils form in layers, or horizons, that collectively make up the soil profile. Which horizon would contain the greatest humus content?
a)
W
b)
X
c)
Y
d)
Z
14.
The table gives details of soil samples collected from different regions.
Which soil sample would be least permeable?
Which soil sample would be least permeable?
a)
soil sample P
b)
soil sample Q
c)
soil sample R
d)
soil sample S
15.
Which term describes the condition or resource that keeps a population at a certain size?
a)
abiotic factor
b)
balance factor
c)
biotic factor
d)
limiting factor
16.
Nadia is digging a hole in her backyard to plant a new tree. As Nadia is digging, she notices that there is only a six-centimeter layer of soil, but then it turns to mostly clay and becomes more difficult to dig. She notices that there are many different types of small insects living in the layer but almost nothing living in the clay layer. She tests the pH of the soil to ensure that the tree will survive and notes that the pH is 6.7. Why did Nadia determine the pH was safe to plant the tree?
a)
Most plants grow best in soil that has a pH of between 3 and 5.
b)
Most plants grow best in soil that has a pH of between 5 and 7.
c)
Most plants grow best in soil that has a pH of between 7 and 9.
d)
Most plants grow best in soil that has a pH of between 9 and 11.
17.
Peter wants to grow some bell peppers in his garden. Peter tests the pH of the soil and finds that the plants will thrive in the soil. What was the most likely pH reading of the soil?
a)
1
b)
3
c)
6
d)
14
18.
Samantha is given small samples of coarse sand, clay, gravel, and silt and is asked to analyze the particle size of each type of soil. Which option correctly organizes the sizes of the particles in decreasing order?
a)
coarse sand, gravel, clay, silt
b)
gravel, coarse sand, clay, silt
c)
clay, silt, coarse sand, gravel
d)
gravel, coarse sand, silt, clay
19.
The job of organisms in level "W" is to decompose and recycle nutrients in the forest ecosystem. What is the term for an organism's role in the ecosystem in which it lives?
a)
community
b)
competition
c)
habitat
d)
niche
20.
The table lists the particle size of four different types of soils.
What is the correct arrangement of the types of soil from most to least permeable?
What is the correct arrangement of the types of soil from most to least permeable?
a)
Type 1 > Type 2 > Type 3 > Type 4
b)
Type 2 > Type 3 > Type 4 > Type 1
c)
Type 2 > Type 4 > Type 3 > Type 1
d)
Type 1 > Type 3 > Type 4 > Type 2
21.
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
22.
If the amount of food or resources available increases, the carrying capacity for an animal:
a)
Stays the same
b)
Increase
c)
Decrease
d)
fluctuate
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