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

A previously forested area devastated by fire

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.

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

It releases carbon into the atmosphere.

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

The clam worm population will increase.

Beneficial Bacteria -->

bacteria being killed in the digestive tract

As ecological succession progresses forward in time,

the diversity of plant and animal life increases.

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

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

The nitrogen cycle is most directly dependent upon the -

nitrogen-fixing bacteria and lightening.

How do antibiotics work to destroy a bacterial cell?

Antibiotics break down the cell wall of the bacterial cell.

The long-term survival of species is dependent on -

changing resource bases that are limited.

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 do plants affect this cycle?

They both release and remove carbon from the atmosphere.

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

Nitrogen fixation and decomposing dead matter

Which organisms are correctly paired with their nutritional roles?

mountain lion—predator; bark beetle—herbivore

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

Rattlesnake, badger, and lizard pops would likely decrease.

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.

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

The flow of necessary nutrients would be disrupted.

In what manner do bacteria cause disease?

They damage tissues and release toxins.

Plant & Animal Diversity -->

decreased the diversity of plant & animal life in that field

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

They serve as decomposers and recycle nutrients.

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

As sewage waste increases, carp population increases.

Which statement best describe the interaction between these two species?

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

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Biology STAAR Review - Ecology

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Biology STAAR Review

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Questions 40

Answers

1
Orchids -->
Predation
Commensalism
Parasitism
Mutualism
2
In which of the following areas would secondary succession most likely occur?
A lava flow
An area with a well-balanced, well-established ecosystem
A previously forested area devastated by fire
A rock ledge exposed by a melting glacier that covered it
3
How would a sudden increase in parasites, within a population, affect the population's growth?
The birth rate would increase.
The death rate would increase.
The growth rate would be unaffected.
The growth rate would continue at a steady pace.
4
According to the graph shown, what effect did the brown tree snake have on the birds in Guam?
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.
The snakes formed a mutualistic relationship with the birds.
5
How does the burning of fossil fuels affect the cycle shown?
It removes carbon from the atmosphere.
It releases ozone into the atmosphere.
It releases carbon into the atmosphere.
It both releases and removes carbon from the atmosphere.
6
Tapeworms -->
Parasitic
Commensalistic
Predation
Mutualistic
7
Which is a long-term effect on the removal of the redfish from the ecosystem?
The clam worm population will increase.
The phytoplankton population will increase.
The amphipod population will increase.
The osprey population will increase.
8
Different species can share the same habitat, but competition among them isreduced if they –
occupy different niches.
move away.
reproduce at different times.
eat less.
9
How does human development of land effect carrying capacity in an area for non-human species?
It increases but then quickly decreases.
It is unaffected.
It is decreased.
It is increased.
10
Beneficial Bacteria -->
the antibiotics being converted into stomach acids
too much water being drawn into the digestive tract
the stomach wall being torn
bacteria being killed in the digestive tract
11
Plant roots -->
Commensalism
Parasitism
Mutualism
Predation
12
Which type of organism can obtain energy directly from any other organisms in an ecosystem?
carnivore
decomposer
producer
herbivore
13
A continuous decrease in the rabbit pop would most likely cause a decrease in which other pop?
Cricket
Grass
Mountain lion
Frog
14
The symbiotic relationship between a flower & the insect that feeds on its nectar is an ex of –
Predation
Mutualism
Commensalism
Parasitism
15
Which organism in the food web to the right would be considered both a 1 and 2 consumer?
Mouse
Grasshopper
Rabbit
Spider
16
How would an increase in prey effect the carrying capacity of a particular ecosystem?
It would increase.
It would decrease.
It would have no effect.
It would decrease suddenly and then slowly increase.
17
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.
18
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 become a home for many insects.
It would compete for space/light with the native plants.
It would attract more animals than can be sustained.
19
Identify 2 specific pops that most likely increased in # if the mountain lion pop decreases.
Rabbit and deer
Mouse and hawk
Mouse and deer
Rabbit and snake
20
The nitrogen cycle is most directly dependent upon the -
evaporation of water from Earth's surface.
nitrogen-fixing bacteria and lightening.
process of transpiration in autotrophs.
ability of consumers to move from place to place.
21
How do antibiotics work to destroy a bacterial cell?
Antibiotics break down the cell wall of the bacterial cell.
Antibiotics invade the nucleus and destroy the DNA.
Antibiotics break down the Endoplasmic reticulum.
Antibiotics destroy the nucleus .
22
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
23
Energy -->
stored as fat.
eliminated as heat.
used in reproduction.
stored as body tissue.
24
The long-term survival of species is dependent on -
its ability to absorb sunlight to stay warm.
its ability to move.
its ability to perform photosynthesis.
changing resource bases that are limited.
25
Using the diagram, why will the herbs and shrubs most likely replace the lichens and mosses?
Increased cultivation by humans will make more fertile soil
lichens/mosses will change the env for herbs/shrubs to grow
An inc. in C02 in the soil will allow taller plants to grow
Dense shrubs are the climax community for this environment.
26
Which factors could be affecting the long-term survival of the axolote species?
Carp & others eat axolate eggs & the plants its eggs are on
Cod & tilapia are eating the limited food source of axolote.
All of these
The canals where the axolote live are being polluted.
27
How do plants affect this cycle?
They both release and remove carbon from the atmosphere.
They only remove carbon from the atmosphere.
They only release carbon into the atmosphere.
They do not contribute to this cycle.
28
What type of relationship exists between these two animals in the picture?
Predation
Commensalism
Parasitism
Commensalism
29
Analyze this food web. What are two roles that bacteria have in the environment?
Recycling nutrients and producing O2 for atmosphere
Nitrogen fixation and decomposing dead matter
Nitrogen fixation and preserving dead matter
Photosynthesis and development of new antibiotics
30
Which organisms are correctly paired with their nutritional roles?
grasshopper—carnivore; grass—autotroph
hawk—decomposer; insect-eating bird—parasite
mouse—autotroph; flower seed—heterotroph
mountain lion—predator; bark beetle—herbivore
31
How would a disease that infects and kills jerboa most directly affect this food web ?
Leafcutter ant populations would compete more for food.
Rattlesnake, badger, and lizard pops would likely decrease.
The biomass of rattlesnakes and lizards would increase.
Raptor and coyote populations would likely increase.
32
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.
33
Which response usually occurs after an individual receives a vaccination forinfluenza virus?
Antigens from the vaccine deactivate the virus.
Enzymes released from platelets kill the virus.
Hormones in the blood inhibit reproduction of the virus.
Antibodies against the virus form in the blood.
34
Which describes the most likely effect of removing plants from the area by chem herbicides?
The infiltration of water into the ground would be halted.
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.
35
In what manner do bacteria cause disease?
They generate heat that kills nearby cells.
They cause cracks in the skin, which allows dirt to enter.
They damage tissues and release toxins.
They integrate themselves into the host cell’s DNA.
36
Plant & Animal Diversity -->
decreased the diversity of plant & animal life in that field
none of these
had very little effect on the diversity of life in the field
increased the diversity of plant & animal life in that field
37
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 act as autotrophs.
They serve as primary producers.
38
What percentage of energy is passed from the producers to the secondary consumers?
1%
10%
100%
0.001%
39
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, walleye population increases.
As sewage waste increases, trout population increases.
40
Which statement best describe the interaction between these two species?
Species A is a predator and species B is its prey.
Species A is a scavenger and species B is its decomposer.
Species A is a host and species B is its parasite.
Species A is a producer and species B is its consumer.

Biology STAAR Review - Ecology Flashcards | StudBud