Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > Ecology Review Questions > Flashcards

Ecology Review Questions Flashcards

1
Q

What is the symbiotic relationship where one organism benefits and the other is harmed?

A

Parasitism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which type of organism is at the bottom of the food pyramid?

A

Producer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are resources that can be produced at roughly the same rate they are consumed?

A

Renewable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

where is the LEAST energy found in an energy pyramid?

A

Top

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the series of changes in an ecosystem when one community is replaced with another

A

Succession

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which limiting factors affect populations based on their size, such as predation or disease?

A

Density dependent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the most important pioneer species in primary succession?

A

Lichens and mosses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the only organisms that can remove or take nitrogen from the air?

A

Bacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is an observing agent, like salt water in the ocean that absorbs excess carbon dioxide

A

Sink

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What type of organisms decompose organic material and return nutrients to the soil, water, air?

A

Decomposers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are chemicals that contribute to the depletion of the ozone?

A

CFCs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which earth system includes the layer gasses that surround the earth?

A

Atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the organism that is benefitting from the parasitic relationship?

A

Parasite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the maximum number of individual organisms that an environment can support indefinitely?

A

Carrying capacity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the process of moving soil from one location to another?

A

Soil erosion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the process where organisms break down sugars and release CO2 into the atmosphere?

A

Cellular respiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which type of succession begins with bare rock?

A

Primary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the atmosphere that prevents much of the ultraviolet radiation from reaching the earths surface?

A

Ozone layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is an increase in the number of organisms of a particular population?

A

Population growth

20
Q

What is a species that is eaten by another organism?

A

Prey

21
Q

Something that cannot make its own food is considered ______?

A

Heterotrophic

22
Q

An organisms “job” in a community is referred to as its _____?

A

Niche

23
Q

What is an ecosystem in which population numbers, resources, and energy fluctuate at a predictable rate?

A

Stable ecosystem

24
Q

What are renewable energy sources like wind, water, or solar energy?

A

Alternative energy

25
Q

Which organisms are found on the second tropic level of ecological pyramids?

A

Herbivores/ primary consumers

26
Q

Which type of symbiotic relationship exists when both animals benefit?

A

Mutualism

27
Q

Producers create their own food through which process?

A

Photosynthesis

28
Q

In the water cycle, what are the two ways water returns to the atmosphere?

A

Transpiration/ evaporation

29
Q

In the carbon cycle, what are two ways carbon is released into the atmosphere?

A

Respiration/ combustion

30
Q

What is the total mass of living organic material at each tropic level?

A

Biomass

31
Q

What is the process where bacteria convert nitrogen gas from the atmosphere into usable nitrogen?

A

Nitrogen fixation

32
Q

What are the first organisms to appear in a community?

A

Pioneer species

33
Q

What is the place where an organism lives?

A

Habitat

34
Q

What is the movement of a particular form of matter through the living and nonliving parts of an ecosystem?

A

Geochemical cycle

35
Q

What is an organism that eats other heterotrophs?

A

Carnivore

36
Q

What is a mature community where there is little change in the composition of species?

A

Climax community

37
Q

An organism can make its own food is considered ________?

A

Autotrophic

38
Q

What is the process when rocks are eroded and carbon is released into the oceans?

A

Weathering

39
Q

What is a relationship where two or more species need the same resources at the same time?

A

Competition

40
Q

What is the process when bacteria break down nitrogen compounds in the soil and return it back into the atmosphere?

A

Denitrification

41
Q

Where is the MOST energy found in an energy pyramid?

A

Bottom

42
Q

What are resources that cannot be produces at roughly the same rate they are consumed

A

Nonrenewable

43
Q

What is close relationship between two different species?

A

Symbiotic relationship

44
Q

What is the increase of greenhouse gases from fossil fuel burning that results in an increase in global temperatures?

A

Global warming

45
Q

What is the process where organisms use energy from sunlight and CO2 from the atmosphere to produce sugars and oxygen?

A

Photosynthesis

46
Q

Which limiting factors affect populations regardless of their size, such as natural disasters?

A

Density-independent

47
Q

Which type of succession follows a disturbance of some kind?

A

Secondary

Biology (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions