Species and Populations 2.1

Question 1

Species

Answer 1

A group of organisms that can interbreed and produce viable offspring

Question 2

Habitat

Answer 2

Physical place where a particular population lives, made up of the sum of all the abiotic favorites to which a species is exposed

Question 3

Population

Answer 3

All the individuals from one species, within a defined area

Question 4

Community

Answer 4

All the interacting populations within one habitat

Question 5

Ecosystem

Answer 5

A community of interdependent organisms and the physical environment they inhabit

Question 6

Biotic factors

Answer 6

Living components of an ecosystem:
Organisms
Competition 
Parasitism
Seed dispersal 
Waste produced

Question 7

Abiotic factors

Answer 7

Non-living components of an ecosystem:
Atmosphere 
Climate
Sunlight 
Rainfall
Temperature
Soil
Nutrients
pH
Water
Seasons

Question 8

Niche

Answer 8

When many organisms occupy the same space they compete for resources, niche is the organism’s way of living

Question 9

Fundamental niche

Answer 9

Describes the full range of conditions and resources in which a species could survive and reproduce

Question 10

Realized niche

Answer 10

Describes the actual conditions and resources in which a species exists due to biotic interactions

Question 11

Interspecific competition

Answer 11

Occurs when two organisms of different species compete for the same resource in an ecosystem

Question 12

Intraspecific competition

Answer 12

Occurs when two organisms of the same species compete for the same resource in an ecosystem

Question 13

Competitive exclusion principle

Answer 13

Two competing life forms attempt to occupy the same niche, one life form drives out the other

Question 14

Symbiosis

Answer 14

Close association between two or more different species or organisms

Parasitism
Mutualism
Commensalism

Question 15

Parasitism

Answer 15

Parasite lives in/on host

Question 16

Mutualism

Answer 16

Relationship where both organisms benefit

Question 17

Commensalism

Answer 17

Relationship where one organisms benefits and the other is unaffected

Question 18

Ecology

Answer 18

The study of how organisms interact with one another and with their physical and chemical environments

Question 19

Ammensalism

Answer 19

One species is harmed and another is not affected

Question 20

Neutralism

Answer 20

Two organisms do not affect each other

Question 21

Respiration

Answer 21

The conversion of organic matter into carbon dioxide and water in all living organisms, releasing energy

Question 22

Photosynthesis

Answer 22

The process by which green plants make their own food from water and carbon dioxide using energy from sunlight