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

The flow of necessary nutrients would be disrupted.

The nitrogen cycle is most directly dependent upon the -

nitrogen-fixing bacteria and lightening.

Beneficial Bacteria -->

bacteria being killed in the digestive tract

Which organisms are correctly paired with their nutritional roles?

mountain lion—predator; bark beetle—herbivore

Plant & Animal Diversity -->

decreased the diversity of plant & animal life in that field

Which statement best describe the interaction between these two species?

Species A is a predator and species B is its prey.

Which relationship can be correctly inferred from the data presented in the given graphs?

As sewage waste increases, carp population increases.

The long-term survival of species is dependent on -

changing resource bases that are limited.

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

They serve as decomposers and recycle nutrients.

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

Nitrogen fixation and decomposing dead matter

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

It releases carbon into the atmosphere.

How do antibiotics work to destroy a bacterial cell?

Antibiotics break down the cell wall of the bacterial cell.

According to the graph shown, what effect did the brown tree snake have on the birds in Guam?

The snakes caused a decline in the number of bird pops.

In what manner do bacteria cause disease?

They damage tissues and release toxins.

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

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

A previously forested area devastated by fire

As ecological succession progresses forward in time,

the diversity of plant and animal life increases.

How would a disease that infects and kills jerboa most directly affect this food web ?

Rattlesnake, badger, and lizard pops would likely decrease.

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

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

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

The clam worm population will increase.

The mutualistic relationships in it allows it to survive.

Which response usually occurs after an individual receives a vaccination forinfluenza virus?

Antibodies against the virus form in the blood.

How do plants affect this cycle?

They both release and remove carbon from the atmosphere.

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Biology STAAR Review 3 - Ecology

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Biology STAAR Review

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Questions 40

Answers

1
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 infiltration of water into the ground would be halted.
The flow of necessary nutrients would be disrupted.
The rate of erosion of rocks on the ground would be slowed.
2
The nitrogen cycle is most directly dependent upon the -
process of transpiration in autotrophs.
evaporation of water from Earth's surface.
ability of consumers to move from place to place.
nitrogen-fixing bacteria and lightening.
3
Beneficial Bacteria -->
bacteria being killed in the digestive tract
too much water being drawn into the digestive tract
the antibiotics being converted into stomach acids
the stomach wall being torn
4
Which organisms are correctly paired with their nutritional roles?
hawk—decomposer; insect-eating bird—parasite
grasshopper—carnivore; grass—autotroph
mountain lion—predator; bark beetle—herbivore
mouse—autotroph; flower seed—heterotroph
5
Plant roots -->
Commensalism
Parasitism
Predation
Mutualism
6
Plant & Animal Diversity -->
decreased the diversity of plant & animal life in that field
none of these
increased the diversity of plant & animal life in that field
had very little effect on the diversity of life in the field
7
Which statement best describe the interaction between these two species?
Species A is a producer and species B is its consumer.
Species A is a scavenger and species B is its decomposer.
Species A is a predator and species B is its prey.
Species A is a host and species B is its parasite.
8
Which organism in the food web to the right would be considered both a 1 and 2 consumer?
Spider
Rabbit
Grasshopper
Mouse
9
Which type of organism can obtain energy directly from any other organisms in an ecosystem?
decomposer
carnivore
herbivore
producer
10
Which relationship can be correctly inferred from the data presented in the given graphs?
As oxygen content decreases, carp population decreases.
As sewage waste increases, carp population increases.
As sewage waste increases, trout population increases.
As sewage waste increases, walleye population increases.
11
The long-term survival of species is dependent on -
its ability to perform photosynthesis.
its ability to move.
changing resource bases that are limited.
its ability to absorb sunlight to stay warm.
12
Which of the following is the most crucial role of fungi in a balanced ecosystem?
They serve as tertiary consumers.
They serve as decomposers and recycle nutrients.
They serve as primary producers.
They act as autotrophs.
13
Analyze this food web. What are two roles that bacteria have in the environment?
Nitrogen fixation and preserving dead matter
Photosynthesis and development of new antibiotics
Nitrogen fixation and decomposing dead matter
Recycling nutrients and producing O2 for atmosphere
14
How does the burning of fossil fuels affect the cycle shown?
It both releases and removes carbon from the atmosphere.
It removes carbon from the atmosphere.
It releases carbon into the atmosphere.
It releases ozone into the atmosphere.
15
How do antibiotics work to destroy a bacterial cell?
Antibiotics destroy the nucleus .
Antibiotics invade the nucleus and destroy the DNA.
Antibiotics break down the cell wall of the bacterial cell.
Antibiotics break down the Endoplasmic reticulum.
16
According to the graph shown, what effect did the brown tree snake have on the birds in Guam?
The snakes formed a mutualistic relationship with the birds.
The snakes had no effect on the bird populations.
The snakes caused a decline in the number of bird pops.
The snakes caused an increase in the number of bird pops.
17
In what manner do bacteria cause disease?
They generate heat that kills nearby cells.
They damage tissues and release toxins.
They cause cracks in the skin, which allows dirt to enter.
They integrate themselves into the host cell’s DNA.
18
Energy -->
eliminated as heat.
used in reproduction.
stored as fat.
stored as body tissue.
19
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
Dense shrubs are the climax community for this environment.
Increased cultivation by humans will make more fertile soil
lichens/mosses will change the env for herbs/shrubs to grow
20
Which factors could be affecting the long-term survival of the axolote species?
The canals where the axolote live are being polluted.
All of these
Carp & others eat axolate eggs & the plants its eggs are on
Cod & tilapia are eating the limited food source of axolote.
21
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 previously forested area devastated by fire
A rock ledge exposed by a melting glacier that covered it
22
As ecological succession progresses forward in time,
the diversity of plant and animal life increases.
the diversity of plant and animal life decreases.
None of these
there is very little effect on the diversity of life.
23
Different species can share the same habitat, but competition among them isreduced if they –
occupy different niches.
eat less.
move away.
reproduce at different times.
24
How does human development of land effect carrying capacity in an area for non-human species?
It is decreased.
It is unaffected.
It is increased.
It increases but then quickly decreases.
25
How would a disease that infects and kills jerboa most directly affect this food web ?
Raptor and coyote populations would likely increase.
Leafcutter ant populations would compete more for food.
Rattlesnake, badger, and lizard pops would likely decrease.
The biomass of rattlesnakes and lizards would increase.
26
How would an exotic/nonnative species likely interrupt the balance freshwater pond ecosystem?
It would attract more animals than can be sustained.
It would cause an overproduction of oxygen and kill fish
It would compete for space/light with the native plants.
It would become a home for many insects.
27
Which is a long-term effect on the removal of the redfish from the ecosystem?
The osprey population will increase.
The clam worm population will increase.
The phytoplankton population will increase.
The amphipod population will increase.
28
What percentage of energy is passed from the producers to the secondary consumers?
100%
10%
1%
0.001%
29
A continuous decrease in the rabbit pop would most likely cause a decrease in which other pop?
Mountain lion
Grass
Cricket
Frog
30
The symbiotic relationship between a flower & the insect that feeds on its nectar is an ex of –
Mutualism
Predation
Parasitism
Commensalism
31
How would an increase in prey effect the carrying capacity of a particular ecosystem?
It would decrease suddenly and then slowly increase.
It would increase.
It would decrease.
It would have no effect.
32
Pioneer Species -->
The lichen is a decomposer that digests rocks & forms soil.
The lichen does not require sunlight to survive.
The lichen is fast growing & provides food for other species
The mutualistic relationships in it allows it to survive.
33
Which response usually occurs after an individual receives a vaccination forinfluenza virus?
Antigens from the vaccine deactivate the virus.
Antibodies against the virus form in the blood.
Hormones in the blood inhibit reproduction of the virus.
Enzymes released from platelets kill the virus.
34
How do plants affect this cycle?
They only remove carbon from the atmosphere.
They both release and remove carbon from the atmosphere.
They only release carbon into the atmosphere.
They do not contribute to this cycle.
35
Identify 2 specific pops that most likely increased in # if the mountain lion pop decreases.
Rabbit and snake
Mouse and deer
Rabbit and deer
Mouse and hawk
36
Which order of diagrams shows the correct order of succession after a forest fire?
2 ‚ 4 ‚ 1 ‚ 3
3 ‚ 2 ‚ 1 ‚ 4
1 ‚ 2 ‚ 3 ‚ 4
2 ‚ 3 ‚ 4 ‚ 1
37
Tapeworms -->
Parasitic
Commensalistic
Predation
Mutualistic
38
What type of relationship exists between these two animals in the picture?
Commensalism
Predation
Commensalism
Parasitism
39
How would a sudden increase in parasites, within a population, affect the population's growth?
The growth rate would continue at a steady pace.
The growth rate would be unaffected.
The death rate would increase.
The birth rate would increase.
40
Orchids -->
Mutualism
Parasitism
Predation
Commensalism

Biology STAAR Review 3 - Ecology Flashcards | StudBud