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BIO Chapter 3: Communities, Biomes, Ecosystems Flashcards | StudBud
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BIO Chapter 3: Communities, Biomes, Ecosystems
BIO Chapter 3: Communities, Biomes, Ecosystems
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Biology
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1
Which biome occurs in the United states and once contained huge herds of grazing herbivores?
Grassland
savanna
temperate forest
Boreal Forest
2
Which single feature is responsible for variation of climate in different parts of the world
amount of precipitation
angle of incoming sunlight
length of daylight
intensity of wind
3
A biotic or abiotic factor that restricts the numbers of organisms in an ecosystem is called a
end point
limiting factor
tolerating factor
primary succession
4
Which statement is true based on this picture?
Steelhead can't tolerate temp above or below a certain limit
Temperature does not affect the physiology of steelhead.
There is no upper limit for steelhead temperature tolerance
Colder water is always better for steelhead survival
5
Which of the following statements is correct based on this graph?
All deserts average more than 20 degrees Celsius.
Some tropical rainforests receive over 400 cm of rain per year.
Tundra is typically warmer than boreal forests.
Temperate rainforests receive more rain than tropical rainforests.
6
If fire were suppressed on a temperate grassland, what species do you think would increase?
grasses
Trees
bison
herbs
7
The average weather conditions affecting a biome is called ____.
tundra
climate
temperate condition
precipitation
8
One community replacing another as a result of changing abiotic and biotic factors is called __
tropical succession
end point
ecological succession
temperate change
9
What defines a savanna
thick forest
grasses with trees intermixed
sand and rocky terrain
layer of frozen soil
10
What does this picture show?
gradual decay of a forest over time
both primary and secondary succession
secondary succession after a forest fire
primary succession after a forest fire
11
Which place would you most likely find pioneer species growing?
Newly formed volcano
Coral Reef
Disturbed Grassland
Climax forest
12
Low levels of sunlight and oxygen characterize which lake zone?
limnetic
profundal
littoral
biotic
13
What is the name for large geographic areas with similar Climax communities
Successions
Biomes
Assemblages
Communities
14
Which statement would you NOT use to describe succession?
it is gradual
it is orderly
it is random
it is predictable
15
Why are lichens and mosses considered pioneer species in primary succession?
They often appear first in primary succession
They are not part of ecological succession.
Primary success begins without topsoil
They will not grow without topsoil.
16
A ____ is an area where the annual rate of evaporation exceeds the rate of precipitation
polar region
desert
tropical forest
temperate forest
17
Conifer trees dominate boreal forests rather than tundra because of
mild climatic and weather conditions
a lack of permanently frozen soil
direct rays of light hitting the biome
the absence of better adapted trees
18
What is a climax community?
community left behind immediately after a forest fire
community consisting of pioneer organisms
stable community with little change in species numbers
community with no biotic factors
19
What ecological process is shown in this picture?
decline in climax community
primary succession
secondary sucdession
decline in mature community
20
Warm temperatures and large amounts of rainfall characterize what type of biome?
boreal forests
tropical rain forest
tundra
temperate grassland
21
What does this picture indicate?
Polar regions receive a more direct angle of sunlight.
Latitude is not a factor in climate
The earth receives different amounts of sunlight at different latitudes.
The equator receives a low angle of sunlight.
22
The first organisms to appear during ecological succession are called ____.
primary organisms
pioneer species
succession plants
end point species
23
Material that is deposited by water, wind, or glaciers is called ____.
littoral material
plankton
biotic material
sediment
24
Of the zones shown here, which is able to support autotrophic producers?
benthic
photic
aphotic
abyssal
25
Where is the largest percentage of water located?
oceans
rivers
groundwater
glaciers
26
Which of these species might be classified as a pioneer species?
lichen
Ponderosa pine
aspen
Choke cherry
27
What does this picture demonstrate?
Altitude affects temperature but not latitude
Increased altitude or latitude causes a temperature decrease
Increased latitude causes a temperature increase
Latitude affects temperature but not altitude
28
Which explains why few animal species live in a fast-flowing river?
Currents prevent accumulation of most organic matter.
Frothing water reflects sunlight away from autotrophs.
Few animals are adapted to withstand high-speed water.
Cold water lowers dissolved oxygen levels.
29
Which would be the beginning of primary succession?
Trees sprouting after a forest fire
A woodland area growing from a grassland
New plant species growing in a flooded area
Lichen growing on cooled lava
30
How is a boreal forest different from tundra?
There are less trees in boreal forests
There is more permafrost in boreal forests
Boreal forests are colder
The ground remains warmer in boreal forests
31
Lack of iron in the photic zone restricts the plankton populations Iron is what kind of factor?
Distribution
Tolerance
Limiting
Biotic
32
Which zone has proven to be the most difficult for marine biologists to explore?
photic zone
intertidal zone
abyssal zone
aphotic zone
