Brainscape's Knowledge GenomeTM

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


See full index

Bio 9 Second semester > Unit 9 > Flashcards

Unit 9 Flashcards

1
Q

deforestation/burning: sink or source

A

Source

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

Effect of Climate Change: Increase in pathogenic ________

A

diseases

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

Effect of Climate Change: Melting _______

A

icecaps

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

Carbon cycles between ______ & ______ things

A

biotic & abiotic

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

Ecosystem Diversity

A

The variety if habitats that exist within a given region

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

Effect of Climate Change: Average global temp ____

A

rise

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

Intermediate Disturbance Hypothesis

A

the hypothesis that ecosystems experiencing intermediate levels of disturbances are more diverse than those with high or low disturbance levels

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

combustion of fossil fuels: sink or source

A

Source

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

What is monocropping and why is it bad?

A

When a farmer only produces one type of crop. This reduces genetic diversity, making the crop more susceptible to disease

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

carrying capacity

A

of organisms that a region can support with its current resources

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

Estuaries

A

transition zone between rivers and oceans

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

Most energy is lost in ____ to the environment (__%)

A

heat, 90

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

Effect of Climate Change: Weather events are becoming more e______, f________, and un___________

A

extreme, frequent, unpredictable

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

Population is decreased by d____ and e_________

A

death and emigration

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

Bycatch

A

unwanted catch that is often killed

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

Logistic Growth shape

A

S curve

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

Population Bottleneck

A

a drastic reduction in population size

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

consequences of global warming

A

Rising ocean, ocean warming, extreme weather, average, global temperature, rise, increase in pathogenic diseases, melting, ice caps, ocean acidification, affects on plants and wildlife

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

Food chain arrows show

A

who gives energy to who

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Population is increased by b____ and i__________.

A

birth and immigration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

decomposition: sink or source

A

Both

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

which two carbon gases are leading to climate change

A

CO2 (carbon dioxide) & CH4 (methane)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

sedimentation of organic material on the ocean floor: sink or source

A

Sink

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Watershed

A

a land area that channels all snowmelt and rainfall to a singular point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Animals can fill ____ ____ ____ trophic level

A

more than one

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Detritovores

A

feed on dead materials (Ex: worms, crabs, vultures)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Estuaries are often characterized by

A

brackish waters and sheltered habitats

28
Q

the sea is rising due to melting glaciers. What is the other reason?

A

Thermal expansion

29
Q

Habitat fragmentation

A

And habitats are broken up due to habitat loss. For example, central Park Forests

30
Q

Indicator Species

A

species that are very sensitive to a certain environmental condition

31
Q

Decomposers

A

chemically break down dead materials (Ex: bacteria, fungi)

32
Q

Resiliance

A

ability and rate of an ecosystem to recover from a disturbance and return to its pre-disturbed state

33
Q

Ecological Disturbances

A

A shift in environmental conditions that causes a pronounced change in an ecosystem

34
Q

___________ connects marine and freshwater systems

A

Groundwater

35
Q

CH4

A

methane

36
Q

Aquatic ecosystems are all _________

A

connected

37
Q

Ecosystem succession:

A

replacement of one community by another over time

38
Q

Fossil fuels: sink or source

A

Sink

39
Q

Effect of Climate Change: Ocean _____________.

A

Acidification

40
Q

There is only about a __% gain from trophic level to trophic level

A

10

41
Q

Ocean: sink or source

A

Sink

42
Q

What causes the pH of the ocean to decrease and make it more acidic

A

Fossil fuels. Carbon dioxide diffuse into the water which reacts with it to produce carbonic acid, which makes it harder for organisms to survive specifically shells because because it doesn’t let them make calcium carbonate.

43
Q

Genetic Diversity

A

genetic variation among individuals in a population

44
Q

Species diversity

A

the number of species in an organism

45
Q

Resistance

A

ability to remain unchanged when being subjected to disturbance

46
Q

why are decomposers important?

A

They help recycle nutrients and energy

47
Q

Primary Succession:

A

first time life has formed on surface

48
Q

______ is the backbone of life on earth

A

carbon

49
Q

Exponential Growth Chart shape

A

J shaped curve

50
Q

A population is:

A

A group of organisms of the SAME species living in the SAME space at the SAME time

51
Q

Limiting Factors

A

Limit the population size from reaching its biotic potential

52
Q

Population letter equation:

A

B+I-D-E

53
Q

Density-Dependant

A

Ex: Food, disease, predators, space, competition

54
Q

Which greenhouse gas is being emitted the most?

A

CO2

55
Q

Types of producers

A

plants, cyanobacteria, protists (algae/phytoplankton)

56
Q

Habitat Fragmentation

A

Isolates populations, disrupting mating and reducing gene flow

57
Q

Density independent

A

Factors that affect populations regardless of their density. Ex: temps, storms, floods, droughts

58
Q

Over fertilization causes _____ ______.

A

algae blooms

59
Q

Biotic Potential

A

maximin reproduction rate of population in ideal conditions

60
Q

Effect of Climate Change: Sea level ____

A

rise

61
Q

Ecosystem Engineers:

A

species that modify their environment in such way that other organisms rely on the changes to live or thrive (also are a keystone species)

62
Q

Effect of Climate Change: Ocean _______

A

warming

63
Q

Keystone species:

A

a species that, if removed, results in the health of an economy drastically declining.

64
Q

Secondary Succession:

A

NOT the first time life has formed in the surface

65
Q

pioneer organisms:

A

the first organisms in an area

66
Q

Greenhouses gases absorb radiations from the sun & ___ the ____ in Earth’s atmosphere.

A

trap, heat

67
Q

photosynthesis: sink or source

A

Sink

Bio 9 Second semester (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions