Ch. 4 Vocab

Question 1

Both species benefit

Answer 1

Mutualism

Question 2

Competition between members of the same species

Answer 2

Intraspecific competition

Question 3

Competition between members of 2 or more species

Answer 3

Interspecific competition

Question 4

A relationship in which one organism benefits while the other is harmed.

Answer 4

Parasitism

Question 5

Animals feed on the tissues of plants

Answer 5

Herbivory

Question 6

A relationship in which one organism is harmed while the other is unaffected

Answer 6

Amensalism

Question 7

A relationship in which one organism benefits, while the other remains unaffected

Answer 7

Commensalism

Question 8

A series of feeding relationships

Answer 8

Food chain

Question 9

A species that plays a vital role in the ecosystem

Answer 9

Keystone species

Question 10

Predators at high trophic levels indirectly affect populations at low trophic levels

Answer 10

Trophic cascade

Question 11

The predictable series of changes in a community following a disturbance

Answer 11

Succession

Question 12

Disturbance that leaves only rock

Answer 12

Primary succession

Question 13

The first species to colonize an area

Answer 13

Pioneer species

Question 14

A disturbance dramatically alters, but does not destroy, all local organisms; Leaves soil intact.

Answer 14

Secondary succession

Question 15

Non-native (exotic) organisms that spread widely and become dominant in a community

Answer 15

Invasive species

Question 16

A species that signals an environmental problem

Answer 16

Indicator species

Question 17

What happens to an ecosystem when a keystone species is removed

Answer 17

the other organisms are affected and sometimes food chains collapse

Question 18

What biome has a good amount of precipitation and cold temps

Answer 18

Boreal/tyga forest

Question 19

What biome has a moderate amount of rain and hot temps

Answer 19

Savanna

Question 20

What happens to an ecosystem when a non native species is introduced

Answer 20

They crowd out the native species because they have no natural predators

Question 21

If there is 2000 Kcal of energy at the producer level in an ecosystem, how much energy is on the herbivore level

Answer 21

200 Kcal

Question 22

Name 3 Abiotic factors

Answer 22

Rainfall
Temperature
Sunlight

Question 23

What is a detritivore

Answer 23

An organism that scavenges the wast products or dead bodies of other organisms

Question 24

Describe what changes occur in an ecosystem after a disturbance that leaves soil intact

Answer 24

Grass comes in, them shrubs, small trees, and then tall trees

Question 25

What is a climax community

Answer 25

The end of succession; A relatively stable state for an ecosystem

Question 26

What biome have very little rain and hot temps

Answer 26

Desert

Question 27

Trophic Cascade

Answer 27

Collapse of the food chain

Question 28

Where does energy go as it travels up the food chain

Answer 28

It goes up

Question 29

What is the order of the Food Chain

Answer 29

Primary Producers-----Decomposers of to the side 
Primary Consumers
Secondary Consumers
Tertiary Consumers
Quaternary Consumers