It describes what a organism does and how it interacts with the environment

What is not true about estuaries?

These are all characteristics of estuaries.

A moose is considered a consumer because it:

gets energy by eating other resources.

Why is the carbon cycle needed?

It's the basis of all organic materials

Which two biogeochemical cycles depend on photosynthesis?

Oxygen cycle and the Carbon cycle.

all of these are examples of ecological succession.

What does respiration have to do with the carbon cycle?

It releases carbon into the air.

Which phrase best describes biodiversity?

the number of species in an ecosystem.

Which two biogeochemical cycles depend on photosynthesis?

Oxygen cycle and the Carbon cycle.

How does the phosphorus cycle start?

It begins with a formation of rocks and phosphorus

What is a pioneer species

Pioneer species are hardy species which are the first to colonize

What are the four major biogeochemical cycles?

Hydrologic, Carbon, Nitrogen, Phosphorus

A keystone species is a species that:

has an unusually large impact on its ecosystem.

How is decomposition involved in the carbon cycle

it breaks down carbon compounds

Nitrogen fixation is the process in the nitrogen cycle that...

Bacteria in the roots of plants turn N2 gas into usable form

How does secondary succession differ from primary succession?

Secondary succession occurs in an area that has soil

What is primary succession

series of changes were no organisms or soil exist

Organisms who make their own food

Decomposers are important to an ecosystem because they:

return vital nutrients to the ecosystem.

Why is Phosphorus an important cycle?

It is the key element in organic matter

The climax community is

a long lasting and apparently stable plant community

A rainforest has a high level of biodiversity because:

many favorable abiotic factors.

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Unit J Biology Honors Ecology Basics

54 termsStudBud Administration227 plays

Chapters - 13, 15.4 & 15.5, 14.3 - 14.5, & 16

Flashcards54 cardsFPractice quizPHost liveL

Questions 54

Answers

1
What part of the hydrologic cycle forms clouds from water vapor?
precipitation
condensation
infiltration
evaporation
2
What is a niche?
Any necessity og life, such as water, nutrients, light, food, or space
A niche describes a general place an organism lives?
A species tolerance for environmental conditions.
It describes what a organism does and how it interacts with the environment
3
What is not true about estuaries?
These are all characteristics of estuaries.
They have high biodiversity.
They are areas full of young marine species.
They adapt to changing salinity and tides.
4
Which organism has the highest concentration of toxins from biomagnification?
producers
secondary consumers.
primary consumers
tertiary consumers
5
Wind is considered to be an abiotic factor because it:
is not a living thing.
is in equilibrium.
is not in any ecosystem.
is not related to biodiversity.
6
A moose is considered a consumer because it:
gets energy by eating other resources.
forms carbohydrates using chemicals.
makes its own food.
uses sunlight for energy.
7
The basis for energy in an ecosystem is provided by:
Consumers
Producers
Heterotrophs
Chemosynthesis
8
Why is the carbon cycle needed?
Because without carbon the Sun would run out of energy
Because carbon is a key element in producing electricity
It's the basis of all organic materials
9
Which of the following is the largest reservoir within the hydrologic cycle?
Groundwater
Great lakes
Ice sheets
The oceans
10
What role do oceans play in the carbon cycle?
They are a major absorber of carbon dioxide
All the above
None of the above
They are a major source of carbon dioxide
11
Which two biogeochemical cycles depend on photosynthesis?
Carbon cycle and the Phosphorus cycle.
Oxygen cycle and the Carbon cycle.
Nitrogen cycle and the Phosphorus cycle.
Hydrologic cycle and the Oxygen cycle.
12
In order to maintain homeostasis, freshwater fish have to
drink water constantly.
urinate large amounts.
constantly move their gills to get rid of excess water.
take in dissolved oxygen constantly unlike marine fish.
13
Succession is
new communities that arise from new lands.
all of these are examples of ecological succession.
regenerated communities after natural disasters.
a sequence of biotic changes.
14
Organisms that feed on dead or decaying matter are called:
carnivore
detritivore
herbivore
omnivore
15
Water that holds the most dissolved gases is
marine.
fresh.
warm.
cold.
16
A group of gray wolves living in Minnesota is an example of:
an ecosystem
a community
a biome
a population
17
What does respiration have to do with the carbon cycle?
It is a type of carbon atom.
It turns water into ice.
It is step three.
It releases carbon into the air.
18
Which phrase best describes biodiversity?
the amount of available energy in an ecosystem.
the amount of biomass in an ecosystem.
the number of species in an ecosystem.
the number of individuals in an ecosystem.
19
Pioneer species of primary succession include
lichens and mosses
animals and trump
birds and bugs
flowers grasses
20
Which two biogeochemical cycles depend on photosynthesis?
Carbon cycle and the Phosphorus cycle.
Oxygen cycle and the Carbon cycle.
Nitrogen cycle and the Phosphorus cycle.
Hydrologic cycle and the Oxygen cycle.
21
Which of the following is an example of a biotic factor in an ecosystem?
Sunlight
Stream
Tree
Rock
22
Which process is part of the hydrologic cycle?
Amonification
Decomposition
Nitrification
Evaporation
23
______ is cycled through ecosystems via biogeochemical cycles
Matter
None of the above
Carbon
Water
24
How much energy is transferred between trophic levels?
100%
15%
10%
20%
25
How does the phosphorus cycle start?
Phosphorus in the Soil goes into bodies of water
It begins by decomposing through bacteria and fungi.
It begins with a formation of rocks and phosphorus
it begins when phosphates move from plants to animals
26
What is a pioneer species
Species that were made by pioneers
Pioneer species are hardy species which are the first to colonize
Species that come after the environment gets destroyed
A plant
27
The islands of Hawaii are an example of
secondary succession.
primary succession.
tertiary succession.
deforestation succession.
28
The base of any food web are
the heterotrophs.
the decomposers.
the omnivores.
the autotrophs.
29
What is the term for a group of different species in a given area?
Population
Community
Ecosystem
Biome
30
What is not considered plankton?
algae
protozoa
krill
small fish
31
Phosphorus moves in a cycle through what?
All the above
Rock and soil
Organisms and other minerals
Water
32
Nitrogen fixation occurs
in all heterotrophs.
when dissolved in bodies of water.
in the atmosphere.
in the soil by bacteria.
33
Fossil fuels are a part of which of the following cycles?
Oxygen
Carbon
Phosphorus
Nitrogen
34
What are the four major biogeochemical cycles?
Hydrologic, Carbon, Nitrogen, Sulfur
Hydrologic, Carbon, Sulfur, Phosphorus
Hydrologic, Carbon, Nitrogen, Potassium
Hydrologic, Carbon, Nitrogen, Phosphorus
35
A keystone species is a species that:
has an unusually large impact on its ecosystem.
leads to a decrease in an area's biodiversity.
alters an area by building bridges and dams.
goes unnoticed if its numbers decrease.
36
How is decomposition involved in the carbon cycle
it removes the carbon from the dead organisms
it breaks down carbon compounds
it adds carbon to dead organisms
it creates carbon compounds
37
What do all biotic and abiotic factors in an area make up?
a population
an ecosystem
a community
a habitat
38
Nitrogen fixation is the process in the nitrogen cycle that...
Nitrogen is fixed into the atmosphere
Nitrogen is removed from dead organisms to be used
Bacteria in the roots of plants turn N2 gas into usable form
Bacteria in the soil turn nitrogen back into N2 gas
39
Freshwater systems can be described by
their salinity.
their flow.
depth.
oxygen content.
40
Which level of organization is a major regional or global community defined by climate?
Community
Ecosystem
Biome
Population
41
How does secondary succession differ from primary succession?
Secondary succession begins with lichens
Secondary succession takes place on bare rocks
Secondary succession occurs in an area that has soil
Secondary succession takes thousands of years
42
What phrase best describes the focus of ecology?
Interactions among cells
Individual cells
Interactions among Organisms
Individual Organisms
43
What is primary succession
the factors that limit dispersal of a species
a mini habitat within a larger one
series of changes were organisms in a ecosystem
series of changes were no organisms or soil exist
44
An organism that makes its own food is called a(n):
Heterotroph
Chroloplast
Producer
Consumer
45
What are autotrophs?
People who love to eat
Organisms that eat other organisms for food and energy
Dinos who eat people
Organisms who make their own food
46
How many trophic levels are present in this food web?
5
2
3
4
47
Heterotrophs...
Can make their own food
Are always microscopic
Are photosynthetic
Eat other organisms
48
Decomposers are important to an ecosystem because they:
can be an omnivore.
capture energy from the Sun.
are producers.
return vital nutrients to the ecosystem.
49
Why is Phosphorus an important cycle?
It is a useful material
It is the key element in organic matter
It is a flammable material
It is a powder
50
The climax community is
the limiting factor for the community
a long lasting and apparently stable plant community
always changing
the animal species at the top of the food chain
51
A rainforest has a high level of biodiversity because:
some endangered species.
few connections between living things.
a narrow variety of living things.
many favorable abiotic factors.
52
Secondary succession begins with
soil already established.
bare rock.
a climax forest.
mosses and lichens.
53
Each level in a food chain contains less energy than the one below it because some energy is:
added to the system.
incorporated into biomass.
consumed by carnivores.
lost as heat.
54
What is the final stage of ecological succession?
primary succession
pioneer species
climax community
population density

Unit J Biology Honors Ecology Basics Flashcards | StudBud