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Environmental Science Midyear review 2020 Flashcards | StudBud
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Environmental Science Midyear review 2020
Environmental Science Midyear review 2020
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Environmental Science, Ecosystems #11th12thgradeenvironmentalscience
Flashcards
45 cards
F
Practice quiz
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Host live
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Questions
45
Answers
1
Name this biome.
Temperate Deciduous Forest
Savanna
Tundra
Desert
2
Name this biome.
Tropical rain forest
Grasslands
Marine
Tundra
3
Organisms that get their food by breaking down dead organisms:
Producers
Decomposers
autotrophs
Primary consumers
4
The ultimate goal of the Endangered Species Act is...
species recovery
eliminate predators
limit economic growth
list all known species
5
Name this biome.
Desert
tropical rain forest
savanna
tundra
6
Which is one of the largest carbon sinks on Earth?
Atlantic Ocean
factories
fossil fuels
small plant
7
Which organism is likely to be in the bottom trophic level of a food chain?
Insect
Owl
Mouse
Strawberry plant
8
Which biome has the most biodiversity?
Tropical Rain Forest
Temperate Forest
Desert
Grassland
9
Name this biome.
Coral Reefs
Savanna
Grassland
Tundra
10
The range or area occupied by a population is its
population density
growth rate
age structure
geographic distribution
11
As a population grows, this means _____.
more resources for other species
less resources for other species
an equal growth in all species
no change in resources
12
What is a constant variable?
The variable you change
the variable you keep the same
The variable you measure
All of the variables
13
The major effects of habitat fragmentation are:
pollution and increase in biodiversity
loss of biodiversity, blocking of animal migration routes
loss of biodiversity, increase in fossil fuel emissions
climate change and pollution
14
What is habitat fragmentation?
Development often grows trees.
Development often splits ecosystems into pieces.
Development often feeds on islands.
Development often grows plantations.
15
What is a problem with over harvesting?
Forest fires
habitat fragmentation
Imbalance in the food chain
pollution
16
Movement of individuals
into
a population
Immigration
Emmigration
Retreating
Carrying capacity
17
Biodiversity is
all the biotic and abiotic factors in an area
the variability among living organisms
the ability to be resilient
the environment and its components
18
Name this biome.
Boreal forest
Tundra
Grassland
Chaparral
19
Threats to biodiversity are
habitat loss, climate change, human population growth
climate change, arctic freezing, human population growth
rain, human population growth, habitat loss
rain, arctic freezing, habitat loss
20
Consumers are organisms that ________.
get solar or other energy indirectly
eat only other animal species
are also known as self-feeders
occupy an ecosystem's lowest energy level
21
Movement of individuals
out
of a population
Carrying capacity
Community
Emigration
Immigration
22
Name this biome.
Temperate forest
Chaparral
Boreal forest
Savanna
23
Which of these equations represents population growth?
immigration - emigration
births - deaths
[immigration + births] - [emigration + deaths]
[immigration + births] + [emigration + deaths]
24
Which country will have the most rapid population growth?
Mexico
None
United States
Sweden
25
What type of human impact do you see in the picture?
Deforestation
Overpopulation
Poaching
Pollution
26
What is a dependent variable?
All of the variables
The variable you measure
the variable you keep the same
The variable you change
27
Which part of the energy pyramid has the most energy?
The bottom
none of the above
The middle
The top
28
A US law that protects biodiversity.
Convention of biodiversity
Endangered Species Act
World Wildlife Federation
Species Survival Plan
29
What term is used to refer to the many feeding relationships that are possible in an ecosystem?
energy transfer
food chain
food web
energy pyramid
30
A trophic pyramid shows...
energy in a food chain
nutrients in a food chain
photosynthesis
the carbon cycle
31
Carrying Capacity Applies To:
All of the above
Animals
Plants
Humans
32
Negative Feedback Loops
disrupt equilibrium by creating change
are disruptive as they increase change
are always bad
are stabilizing as they reduce change
33
Carrying capacity is
the amount of deer born each year
the amount that move out of an area
the maximum number of individuals a habitat can support
the limit animals can carry on their backs
34
Which does
not
contain carbon from plants and animals that died millions of years ago?
natural gas
oil
phosphates
coal
35
What is a Population?
Things that are living and dead
all living creatures in an ecosystem
Group of the same species that live in the same area
A group of different species
36
The independent variable in an experiment is:
The variable you keep the same
All of the variables
The variable you measure
The variable you change
37
Which kind of organism obtains energy from producers?
herbivores
omnivores
All of these
decomposers
38
Exponential Growth occurs when-Populations
have plenty of food/space and no competitors or predators
are keystone species
have invasive species in a habitat
have competition or predators
39
What are limiting factors?
The largest population an area can support with its resources
Environmental factors that causes a population to decrease
Something that helps an ecosystem
natural resources caused directly or indirectly by humans
40
Abiotic factors are ....
nonliving parts of an environment
living parts of an environment
now dead but used to be living
made up of cells
41
What natural disaster can actually help forest communities, clear away deadwood, release seeds?
fire
drought
flood
windstorm
42
What is a Hypothesis?
Involves series of ordered steps
a testable explanation for observations or phenomenon
An answer
A question
43
A trophic cascade is when...
all levels of an ecosystem are affected due to a change
Rocks on a mountain slide down
one organism gets eaten by a bigger one
a natural disaster
44
Which community is less vulnerable to disease?
Community 2
They are equally vulnerable
neither is vulnerable
Community 1
45
Plants play a crucial role in the carbon cycle because they _________________.
are chemically converted into fossil fuels when burned
do not release carbon dioxide during cellular respiration
have special bacteria that live in their root systems
allow carbon to enter an ecosystem through photosynthesis
