Brainscape's Knowledge GenomeTM

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


See full index

Biology > Ecology > Flashcards

Ecology Flashcards

0
Q

Define

Population

A

The amount of species in one are at one point in time

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

Define

Species

A

A specific type of organism

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

Define

Dispersion

A

How organisms spread out

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

Define natality

A

Number of births in an ecosystem

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

Define

Mortality

A

Number of deaths in an ecosystem

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

Define

Carrying capacity

A

Number of organisms that an area can support

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

Define

Gene flow

A

Spread of genes to different areas

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

Define

Growth rate

A

Comparison of births and deaths

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

Define

Genetic drift

A

Isolated populations develop different traits

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

Define

Natural selections

A

Nature decides which traits are favorable

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

Give an example that is a representation of population

A

Population of freshman in mr.aldrich’s 3rd period biology

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

What is the movement in alleles into and out of a population called

A

Gene flow

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

How does natural selection shape populations

A

Changes alleles and traits

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

The population size that can be sustained by an environment over time is the

A

Carrying capacity

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

Which tropic level does the grass fill

A

Producer

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

Which tropic level does the mouse fill

A

Secondary consumer- carnivore

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

Which level in the energy pyramid does the fox fill

A

Top consumer

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

Which level in the energy pyramid does the grasshopper fill

A

Primary consumer

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

Which organisms don’t fit the energy pyramid

A

Detritivores

19
Q

Is a lion killing a sheep an example of a biotic factor

A

Yes

20
Q

Is water for fish to swim in an example of an abiotic factor

A

Yes

21
Q

About how much energy is passed between feeding level

A

10%

22
Q

Ones the earth have all of the energy it will ever have

A

No

23
Q

Why must we recycle

A

Because we ready have all of the matter we will ever have

24
Q

Is nitrogen easily absorbed by animals

A

No, we have to get it from plants in order to absorb it

25
Q

Is nitrogen easily absorbed by plants

A

No it needs to be converted to nitrates

26
Q

What is the main source of energy for biological cycles

A

The sun

27
Q

What are the primary consumers in an energy pyramid

A

Herbivores

28
Q

What is a food web

A

Network of food chains

29
Q

Why is a large gene pool advantageous

A

Because it hides the bad traits

30
Q

The number of species in an ecosystem is referred to as what

A

Biodiversity

31
Q

Why is nitrogen important to plants and animals

A

Gives animals proteins for cells

32
Q

Organisms that feed on already dead organisms and break down matter are

A

Scavengers

33
Q

In the nitrogen cycle what is nitrogen converted into so plants can absorb it

A

Nitrates

34
Q

How are predators a limiting factor to prey in populations

A

Lower the preys population

35
Q

How are prey a limiting factor to predator populations

A

The prey is the predators food source

36
Q

Is a lion eating a goat an example of parasitism

A

No because it isn’t an ongoing process

37
Q

Lizards getting faster as bugs get faster is an example of

A

Convolution

38
Q

Bird eating bugs that infest a rhinos ear is an example of

A

Mutualism

39
Q

In which type of symbiosis do both organisms benefit from the relationship

A

Mutualism

40
Q

Do all members of a species share the same niche in an ecosystem

A

Yes

41
Q

Why are biomes named for the plant life in an area

A

Because plants can only live under certain conditions

42
Q

Do grasslands typically have the same amount if precipitation as forests

A

No

43
Q

Are tundra and deserts at opposite ends of the biome spectrum

A

No

44
Q

Which biomes have the least amount of rainfall

A

Desert and tundra

45
Q

Which forests has the deepest amount of soil

A

Deciduous forests

46
Q

In which biomes will you find the most biodiversity

A

Tropical rainforest

Biology (5 decks)

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