Font size
S
M
L
XL
WorksheetsEcology Midterm Exam Review
Total questions: 82
Worksheet time: 43mins
Name
Class
Date
1.
A(n) ____________ consists of different species interacting with each other and their environment.
a)
Habitat
b)
Population
c)
Community
d)
Ecosystem
2.
Which of the following is an example of a population?
a)
Bass in a lake
b)
An ocean
c)
A patch of woods
d)
Predator and Prey in a grassland
3.
Which of the following levels of organization is the most inclusive?
a)
Community
b)
Biosphere
c)
Population
d)
Ecosystem
4.
The biosphere -
a)
Is the portion of earth in which living organisms exist
b)
Includes none of the hydrosphere
c)
Includes all of the lithosphere
d)
Includes some of the mantle
5.
Which of the following is NOT one of the three interconnected factors upon which life on earth depends?
a)
Matter cycling
b)
Entropy
c)
The one-way flow of energy from the sun
d)
gravity
6.
Most of the solar energy that passes through the atmosphere is -
a)
Captured by green plants
b)
reflected back into space
c)
degraded into infrared radiation
d)
used to generate wind
7.
The presence in the atmosphere of natural greenhouse gases is vital to continued life on earth.
a)
True
b)
False
8.
According to the _______, there is a range for physical conditions and concentrations of substances beyond which no members of a particular species can survive.
a)
Limiting factors principle
b)
Law of tolerance
c)
Law of conservation of mass
d)
First law of thermodynamics
9.
Which of the following is a limiting factor for an aquatic life zone?
a)
Depth of water
b)
Number of species
c)
Size of population
d)
Dissolved oxygen content
10.
Which of the following is NOT a component of biodiversity?
a)
Chemical diversity
b)
Genetic diversity
c)
Ecological diversity
d)
Species diversity
11.
Phytoplankton in an open water ecosystem are:
a)
Secondary Consumers
b)
Primary Consumers
c)
Producers
d)
Tertiary Consumers
12.
A decomposer is a type of:
a)
1st Order Heterotroph
b)
3rd Order Heterotroph
c)
Autotroph
d)
Detritovore
13.
The percentage of usable energy transferred as biomass from one trophic level to another is called -
a)
Energy flow
b)
The limiting factor
c)
Biomass
d)
Ecological efficiency
14.
Which of the following is not one of the most productive ecosystems?
a)
Swamp
b)
Temperate grassland
c)
Tropical rain forest
d)
Estuary
15.
Soil -
a)
Filters and cleans water
b)
Provides most of the nutrients plants need
c)
Is renewable only over a very long period of time
d)
All of the above
16.
A soil horizon consists of -
a)
The horizontal layers in mature soil
b)
The surface litter layer
c)
The top layer of soil in which plants live
d)
None of the choices
17.
Which biogeochemical cycle is involved in producing fossil fuels?
a)
Water Cycle
b)
Nitrogen Cycle
c)
Carbon Cycle
d)
Phosphorus Cycle
18.
Which of the following is often the limiting factor for plant growth on land?
a)
Phosphorus
b)
Sulfur
c)
Nitrogen
d)
Carbon
19.
What is systems analysis?
a)
Observations of food webs
b)
Modeling ecosystem function
c)
Generating maps with GIS
d)
Applied field research
20.
What does the "H" stand for in the scientific acronym "HIPPO" which describes the five major causes of species decline and premature extinction?
a)
Health concerns
b)
Human intervention
c)
Hunting and exploitation
d)
Habitat destruction and degradation
21.
At which stage of a food chain will the population with the smallest number of animals be found?
a)
Producers
b)
1st order heterotroph
c)
2nd order heterotroph
d)
3rd order heterotroph
22.
Bacteria and Fungi are called _______ because they break down and absorb nutrients from dead organic matter.
a)
Scavengers
b)
Decomposers
c)
Parasites
d)
All of the above
23.
Freshwater biomes include the following:
a)
Lake
b)
Pond
c)
Stream
d)
All of the above
24.
Temperature differences in a lake are what type of factor?
a)
Abiotic
b)
Biotic
c)
Dependent factors
d)
Independent factors
25.
What is Ecology?
a)
The study of biotic factors in an ecosystem
b)
The study of how organisms interact with each other and also their environment
c)
The study of non-living factors in an ecosystem
d)
The study of how organisms interact with each other
26.
The four layers that make up the Biosphere include:
a)
Mantle, Atmosphere, Crust, Asthenosphere
b)
Mantle, Crust, Stratosphere, Hydrosphere
c)
Atmosphere, Stratosphere, Ionosphere, Lithosphere
d)
Atmosphere, Stratosphere, Hydrosphere, Lithosphere
27.
On a food web, which way should the arrows point?
a)
Toward the prey
b)
Toward the predator
c)
Toward the sky
d)
Toward the sun
28.
An organism that eats only meat
a)
Producer
b)
Omnivore
c)
Carnivore
d)
Autotroph
29.
The first link in every food chain or food web
a)
Omnivore
b)
1st Order Heterotroph
c)
Autotroph
d)
3rd Order Heterotroph
30.
An organism that searches for and feeds on the remains of dead organisms
a)
Producer
b)
Herbivore
c)
1st order heterotroph
d)
Scavenger
31.
Most humans are in this category
a)
Omnivore
b)
Herbivore
c)
Scavenger
d)
Producer
32.
A fish is an example of...
a)
Biotic Factor
b)
Abiotic Factor
33.
Water is an example of...
a)
Biotic Factor
b)
Abiotic Factor
34.
Soil is an example of...
a)
Biotic Factor
b)
Abiotic Factor
35.
Which represents the largest group in a food web?
a)
carnivores
b)
omnivores
c)
herbivores
d)
producers
36.
A third-level consumer has to be which type?
a)
Carnviore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
37.
What percentage of energy is passed on to each tropic level?
a)
10%
b)
50%
c)
90%
d)
100%
38.
As shown in this foodweb, which of these is NOT an omnivore?
a)
The grouse
b)
The grizzly bear
c)
They are all omnivores
d)
The marmot
39.
In this foodweb, what niche does the butterfly fill?
a)
Primary consumer
b)
Omnivore
c)
Secondary consumer
d)
Producer
40.
Although 70% of the air we breathe is Nitrogen, most organisms cannot use atmospheric Nitrogen directly. Which organisms chemically change nitrogen into a more useable form in the nitrogen cycle?
a)
plants
b)
herbivores
c)
bacteria
d)
carnivores
41.
What is a group of different populations of organisms?
a)
habitat
b)
microorganisms
c)
biotic factors
d)
communities
42.
Which
classification applies to deer, rabbits, and squirrels?
a)
omnivores
b)
decomposers
c)
herbivores
d)
carnivores
43.
Organisms that produce their own food using the heat from the earth's crust, instead of the sun:
a)
Omnivores
b)
Herbivores
c)
Photosynthesizers
d)
Chemosynthesizers
44.
The downward movement of water through soil.
a)
Infiltration
b)
Leaching
c)
Weathering
d)
Recycling
45.
Dissolving of minerals and organic matter in upper layers carrying them to lower layers.
a)
Infiltration
b)
Leaching
c)
Weathering
d)
Recycling
46.
In the carbon cycle, what is the role of green plants?
a)
release carbon dioxide into the air
b)
decomposing matter
c)
absorbing carbon dioxide
d)
combustion
47.
What role do animals play in the carbon cycle?
a)
absorb carbon dioxide from the atmosphere
b)
give off carbon dioxide
c)
combustion
d)
decomposing matter
48.
Human activities alter the water cycle by -
a)
Withdrawing large amounts of freshwater
b)
Clearing vegetation and eroding soils
c)
Polluting surface and underground water
d)
All of the choices
49.
The cycle through which water in the hydrosphere moves; includes such processes as evaporation, condensation, and precipitation.
a)
Rock Cycle
b)
Circulatory System
c)
Bicycle
d)
Water Cycle
50.
Part of the water cycle where an excess of water runs down and does not sink into the soil and eventually makes it to the rivers, lakes, and oceans.
a)
aquifer
b)
hydro
c)
vapor
d)
runoff
51.
What type of leaf arrangement is shown?
a)
opposite
b)
whorled
c)
alternate
d)
cyclical
52.
What type of leaf arrangement is shown?
a)
opposite
b)
alternate
c)
whorled
d)
cyclical
53.
What type of leaf arrangement is shown?
a)
opposite
b)
alternate
c)
whorled
d)
cyclical
54.
Type of leaf shown?
a)
Palmately lobed
b)
Palmately compound
c)
Pinnately lobed
d)
Pinneately compound
55.
Type of leaf shown?
a)
Palmately lobed
b)
Palmately compound
c)
Pinneately lobed
d)
Pinneately compound
56.
Type of leaf margin shown?
a)
smooth
b)
toothed
c)
lobed
d)
bristle-tipped
57.
Type of leaf margin shown?
a)
smooth
b)
Toothed
c)
Doubly toothed
d)
Bristle-tipped
58.
Type of leaf margin shown?
a)
Smooth
b)
Toothed
c)
Lobed
d)
Bristle-tipped
59.
Type of leaf shown?
a)
Palmately lobed
b)
Palmately compound
c)
Pinneately lobed
d)
Pinneately compound
60.
Type of leaf shown?
a)
Palmately lobed
b)
Palmately compound
c)
Pinneately lobed
d)
Pinneately compound
61.
Type of leaf shown?
a)
Palmately lobed
b)
Palmately compound
c)
Pinneately lobed
d)
Pinneately compound
62.
Type of leaf shown?
a)
Palmately lobed
b)
Palmately compound
c)
Pinneately lobed
d)
Pinneately compound
63.
Common names of organisms:
a)
are used in day to day conversations
b)
uniquely identify each species
c)
is the most accurate way to identify living organisms
d)
are usually written in italics or underlined
64.
Scientific names of organisms:
a)
are based on physical characteristics of organisms
b)
are often confusing when travelling from place to place
c)
are sometimes named after the person who studies the organism
d)
uniquely identify each species with a genus and species name
65.
Which of the following is an example of a scientific name?
a)
Silver maple
b)
Sugar maple
c)
Striped maple
d)
Acer rubrum
66.
Type of leaf shown?
a)
Needle-like
b)
Scale-like
c)
Broad and flat
d)
All of the choices
67.
Type of leaf shown?
a)
Needle-like
b)
Scale-like
c)
Broad and flat
d)
All of the choices
68.
Type of leaf shown?
a)
Needle-like
b)
Scale-like
c)
Broad and flat
d)
All of the choices
69.
To be considered a tree, the mature size must be a minimum of:
a)
15 feet
b)
20 feet
c)
25 feet
d)
30 feet
70.
What is dendrology?
a)
Study of trees and shrubs
b)
Study of shrubs
c)
Study of trees
d)
Study of how organisms interact with their environment
71.
All trees are:
a)
Annuals
b)
Biennials
c)
Perrenials
d)
None of the choices
72.
Other than leaves, what other characteristics can be used to identify trees?
a)
Bark
b)
Twigs
c)
Fruits
d)
All of the choices
73.
Coniferous trees are also known as:
a)
Angiosperms
b)
Hardwoods
c)
Gymnosperms
d)
Broadleafs
74.
Conifer leaves are usually:
a)
Scale-like
b)
Needle-like
c)
Broad and flat
d)
Scale-like OR Needle-like
75.
Deciduous trees:
a)
Lose their leaves each fall
b)
Are also known as angiosperms
c)
Are hardwoods
d)
All of the choices
76.
These trees have cones and needles but lose their leaves each fall?
a)
Holly trees
b)
Larch trees
c)
Yew trees
d)
none of the choices
77.
These trees have broad, flat leaves but are Evergreens
a)
Holly trees
b)
Larch trees
c)
Yew trees
d)
None of the choices
78.
Which type of tree is shown here?
a)
Angiosperms
b)
Conifers
c)
Broadleafs
d)
Christmas trees
79.
What type of tree is shown here?
a)
Gymnosperms
b)
Softwoods
c)
Conifers
d)
Deciduous trees
80.
What type of leaf arrangement is shown here?
a)
Opposite
b)
Alternate
c)
Whorled
d)
Gymnosperm
81.
Type of tree?
a)
Oak
b)
Pine
c)
Maple
d)
Holly
82.
Type of tree?
a)
maple
b)
oak
c)
holly
d)
pine
Reset
