Ecology

Question 1

A living plant animal or microbe is what

Answer 1

An organism

Question 2

Define biodiversity

Answer 2

The diversity of a species in a given area

Question 3

Define ecosystem

Answer 3

A community of organisms interacting with abiotic enviornmental factors

Question 4

Result of burning and clearing of a tropical forest

Answer 4

Global warming would increase, less oxygen, decrease in biodiversity

Question 5

Activities with negative impact on environment

Answer 5

Snow Avalanche, resurfacing a road, forest fire, nuclear explosion

Question 6

Explain how top predators may increase the biodiversity of species lower on the food chain

Answer 6

Decreasing competition

Question 7

Define non native species

Answer 7

Invasive, not normally found in the area, introduced into an area by humans

Question 8

What is the most common explanation for population growth by a non native species

Answer 8

They have found many unoccupied niches

Question 9

Which environmental factors are looked at when monitoring human pollution

Answer 9

Air quality, water quality, ocean currents

Question 10

The maintenance of self sustaining ecosystem requires what

Answer 10

Cycling of materials between organisms and their environment

Question 11

Why does each successive feeding level in a pyramid of energy have less biomass

Answer 11

Carnivore biomass is less than producer biomass as a result of energy being lost as it flows from producer to carnivore

Question 12

What is the most likely succession in the repopulation of an aera

Answer 12

Lichens-grasses-shrubs-trees

Question 13

What part of the ecosystem is not recycled through the earths ecosystems

Answer 13

Energy

Question 14

Natural populations numbers increase and decrease around the carrying capacity when they reach a

Answer 14

Steady state

Question 15

A group of similar looking organisms that breed with each other and produce fertile offspring make up a

Answer 15

Population

Question 16

Invasive rabbit population increase what is logical reason

Answer 16

Few effective predators

Question 17

Example of mutualism

Answer 17

E. coli bacteria living on human intestines

Question 18

Example for parasitism

Answer 18

Heart worms in living dog

Question 19

If a population grows larger than the carrying capacity

Answer 19

Death rate may rise

Question 20

Nutrients move through the biosphere through

Answer 20

Biochemical cycles

Question 21

Probably the most important factors affecting the distribution of biomes are

Answer 21

Climate and climax communities

Question 22

De composers in nitrogen cycle AIDS in what

Answer 22

Restoration in nirogen compounds to the soil

Question 23

What is the role of NO3 in the cycle

Answer 23

Used by plants for growth

Question 24

Largest percentage of available energy found where on pyramid

Answer 24

Bottom

Question 25

Growth rate

Answer 25

Birth rate to death rate

Question 26

Biome with most biodiversity

Answer 26

Tropical forest

Question 27

Exponential growth slows when

Answer 27

Resources become limited

Question 28

The amount of energy in each tropic level of consumers is

Answer 28

10% of the level below it

Question 29

Humpback whales and barnacles is example of

Answer 29

Communalism

Question 30

Driving source for water cycle

Answer 30

Sunlight

Question 31

What organism is responsible for nitrogen fixation

Answer 31

Bacteria

Question 32

Nitrate return or soil

Answer 32

Decomposition

Question 33

Role of species in community

Answer 33

Niche

Question 34

Extinctions due today are becausw of

Answer 34

Loss of habitat

Question 35

Detrivore

Answer 35

Feeds on dead animals

Question 36

Biomass pyramid

Answer 36

Total mass of living tissue at each tropic level

Question 37

What promotes competition in ecosystem

Answer 37

Limited resources

Question 38

Water loss in stromata plants

Answer 38

Condensation

Question 39

Dentrification

Answer 39

Nitrogen in soil goes back to atmosphere

Question 40

Only eat producers

Answer 40

Herbivores

Question 41

Primary succession

Answer 41

Community development in an essentially lifeless area with no soil remaining from the previous community

Question 42

Secondary succession

Answer 42

Community development following the disturbance of a previously existing community (soil still there) Ex forest fire flood

Question 43

Pioneer community

Answer 43

First organism to move into new area

Question 44

Climax

Answer 44

Last community to move in, stays same for very long, little change, highest species diversity

Question 45

More diversity equals

Answer 45

More stable system

Question 46

Dominant species

Answer 46

Species with most biomass

Question 47

Keystone species

Answer 47

Removal has major effects | Ex kelp humans coral

Question 48

What represents a dead end in food chain

Answer 48

Non native species

Question 49

Population density

Answer 49

Number or organisms per area

Question 50

Dispersion

Answer 50

Spacing of a population within an area

Question 51

Uniform ex

Answer 51

Territorial animals Black bears Garden

Question 52

Clumped

Answer 52

Bison | Pack herd animals

Question 53

Random

Answer 53

Deer

Question 54

Quadrat sampling

Answer 54

Known small area to count organisms smaller organisms larger area

Question 55

Random sampling

Answer 55

Known number and randomly choosing sports

Question 56

Line transept

Answer 56

Walk in straight line count as pass by

Question 57

Mark and recapture

Answer 57

Capture tag release

Question 58

Population growth rate

Answer 58

How fast population grows

Question 59

Nataliry

Answer 59

Birth rate

Question 60

Mortality

Answer 60

Death rate

Question 61

Emigration a

Answer 61

Moving away from pop

Question 62

Immigration

Answer 62

Moving into pop

Question 63

Lag phase

Answer 63

No to slow growth

Question 64

Exponential phase

Answer 64

Rapid uncontrolled growth

Question 65

R strategists

Answer 65

Small organisms short life span produce many offspring Controlled by density independent Exponential growth

Question 66

K strategists

Answer 66

Larger long life few offspring | Humans elephant follow logistic

Question 67

Demography

Answer 67

Study of human pop

Question 68

Pre reproductive

Answer 68

Under 20

Question 69

Reproductive

Answer 69

20-44

Question 70

Post reproductive

Answer 70

Above 44

Question 71

Rapid

Answer 71

Fat to small graph

Question 72

Slow growth is

Answer 72

Squiggly graph

Question 73

No growth is s

Answer 73

Same size top bottom whole graph

Question 74

Inter specific competition

Answer 74

Between organisms of same species

Question 75

Predation

Answer 75

One organism feeds on other | How energy best recycled

Question 76

Population

Answer 76

Particular species living Ina certain area

Question 77

Community

Answer 77

Group of interacting populations that occupy same area

Question 78

Ecosystem

Answer 78

Biological community with all the biotic and abiotic features

Question 79

Organism affects biotic

Answer 79

Eats all food disease reproduction

Question 80

Organism affects biotic

Answer 80

Breathe out co2