The mutualistic relationships in it allows it to survive.

Using the diagram, why will the herbs and shrubs most likely replace the lichens and mosses?

lichens/mosses will change the env for herbs/shrubs to grow

How does the burning of fossil fuels affect the cycle shown?

It releases carbon into the atmosphere.

How would an exotic/nonnative species likely interrupt the balance freshwater pond ecosystem?

It would compete for space/light with the native plants.

In which of the following areas would secondary succession most likely occur?

A previously forested area devastated by fire

Which of the following is the most crucial role of fungi in a balanced ecosystem?

They serve as decomposers and recycle nutrients.

How do plants affect this cycle?

They both release and remove carbon from the atmosphere.

Plant & Animal Diversity -->

decreased the diversity of plant & animal life in that field

Which is a long-term effect on the removal of the redfish from the ecosystem?

The clam worm population will increase.

The nitrogen cycle is most directly dependent upon the -

nitrogen-fixing bacteria and lightening.

As ecological succession progresses forward in time,

the diversity of plant and animal life increases.

Which describes the most likely effect of removing plants from the area by chem herbicides?

The flow of necessary nutrients would be disrupted.

Beneficial Bacteria -->

bacteria being killed in the digestive tract

Analyze this food web. What are two roles that bacteria have in the environment?

Nitrogen fixation and decomposing dead matter

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Biology STAAR Review - Ecology

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Biology STAAR Review

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Questions 26

Answers

1
Symbiotic Realationship?Tapeworms
Predation
Mutualistic
Parasitic
Commensalistic
2
Pioneer Species -->
The lichen is fast growing & provides food for other species
The mutualistic relationships in it allows it to survive.
The lichen does not require sunlight to survive.
The lichen is a decomposer that digests rocks & forms soil.
3
Using the diagram, why will the herbs and shrubs most likely replace the lichens and mosses?
An inc. in C02 in the soil will allow taller plants to grow
lichens/mosses will change the env for herbs/shrubs to grow
Dense shrubs are the climax community for this environment.
Increased cultivation by humans will make more fertile soil
4
Symbiotic Relationship:Orchids
Mutualism
Parasitism
Predation
Commensalism
5
Clover Plant Roots and Bacteria
Predation
Mutualism
Commensalism
Parasitism
6
How does the burning of fossil fuels affect the cycle shown?
It removes carbon from the atmosphere.
It releases ozone into the atmosphere.
It both releases and removes carbon from the atmosphere.
It releases carbon into the atmosphere.
7
Which factors could be affecting the long-term survival of the axolote species?
Carp & others eat axolate eggs & the plants its eggs are on
The canals where the axolote live are being polluted.
Cod & tilapia are eating the limited food source of axolote.
All of these
8
The symbiotic relationship between a flower & the insect that feeds on its nectar is an example of –
Parasitism
Predation
Commensalism
Mutualism
9
How would a sudden increase in parasites, within a population, affect the population's growth?
The death rate would increase.
The growth rate would continue at a steady pace.
The growth rate would be unaffected.
The birth rate would increase.
10
How does human development of land effect carrying capacity in an area for non-human species?
It increases but then quickly decreases.
It is decreased.
It is unaffected.
It is increased.
11
Energy Transfer
eliminated as heat.
stored as body tissue.
used in reproduction.
stored as fat.
12
How would an exotic/nonnative species likely interrupt the balance freshwater pond ecosystem?
It would cause an overproduction of oxygen and kill fish
It would compete for space/light with the native plants.
It would attract more animals than can be sustained.
It would become a home for many insects.
13
In which of the following areas would secondary succession most likely occur?
An area with a well-balanced, well-established ecosystem
A lava flow
A rock ledge exposed by a melting glacier that covered it
A previously forested area devastated by fire
14
What type of relationship exists between these two animals in the picture?
Commensalism
Parasitism
Commensalism
Predation
15
Which of the following is the most crucial role of fungi in a balanced ecosystem?
They serve as primary producers.
They serve as tertiary consumers.
They serve as decomposers and recycle nutrients.
They act as autotrophs.
16
How do plants affect this cycle?
They do not contribute to this cycle.
They both release and remove carbon from the atmosphere.
They only release carbon into the atmosphere.
They only remove carbon from the atmosphere.
17
Which type of organism can obtain energy directly from any other organisms in an ecosystem?
producer
carnivore
decomposer
herbivore
18
Plant & Animal Diversity -->
decreased the diversity of plant & animal life in that field
increased the diversity of plant & animal life in that field
had very little effect on the diversity of life in the field
none of these
19
Which is a long-term effect on the removal of the redfish from the ecosystem?
The phytoplankton population will increase.
The clam worm population will increase.
The osprey population will increase.
The amphipod population will increase.
20
A continuous decrease in the rabbit pop would most likely cause a decrease in which other pop?
Frog
Mountain lion
Grass
Cricket
21
The nitrogen cycle is most directly dependent upon the -
nitrogen-fixing bacteria and lightening.
ability of consumers to move from place to place.
process of transpiration in autotrophs.
evaporation of water from Earth's surface.
22
As ecological succession progresses forward in time,
the diversity of plant and animal life decreases.
the diversity of plant and animal life increases.
None of these
there is very little effect on the diversity of life.
23
Which describes the most likely effect of removing plants from the area by chem herbicides?
Ability of plants to complete photosynthesis would be INC
The flow of necessary nutrients would be disrupted.
The rate of erosion of rocks on the ground would be slowed.
The infiltration of water into the ground would be halted.
24
Beneficial Bacteria -->
bacteria being killed in the digestive tract
the stomach wall being torn
too much water being drawn into the digestive tract
the antibiotics being converted into stomach acids
25
Analyze this food web. What are two roles that bacteria have in the environment?
Nitrogen fixation and preserving dead matter
Recycling nutrients and producing O2 for atmosphere
Photosynthesis and development of new antibiotics
Nitrogen fixation and decomposing dead matter
26
Different species can share the same habitat, but competition among them is reduced if they –
move away.
occupy different niches.
eat less.
reproduce at different times.

Biology STAAR Review - Ecology Flashcards | StudBud