Ecology

Question 1

Ecology

Answer 1

The study of the relationships between living organisms and their physical environment.

Question 2

Biological Levels

Answer 2

Individual -> Population -> Community -> Ecosystem -> Biome -> Biosphere

Question 3

Abiotic Factors

Answer 3

Non-living (water, air, soil, sunlight, etc…)

Question 4

Biotic Factors

Answer 4

Living or once-living ( animals, birds, fungi, etc..)

Question 5

Individual

Answer 5

A member of a species

Question 6

Population

Answer 6

A group of individuals of the same species

Question 7

Community

Answer 7

A group of interacting species

Question 8

Ecosystem

Answer 8

A group of interacting species and their abiotic environment.

Question 9

Biome

Answer 9

All ecosystems having a common physical environment with shared characteristics

Question 10

Biosphere

Answer 10

All regions of the Earth that is inhabited

Question 11

Habitats

Answer 11

The natural home or environment of an organism

Question 12

Microhabitat

Answer 12

A home inside of a generalised habitat ( burrow inside a tree)

Question 13

Types of Organismal Relationships

Answer 13

Competition - Predation - Mutualism - Parasitism - Commensalism

Question 14

Competition

Answer 14

Different individuals compete over a limited resource or food.

Question 15

Predation

Answer 15

A predator will eat or kill their prey.

Question 16

Mutualism

Answer 16

Two organisms live closely together and benefit by co-existing.

Question 17

Parasitism

Answer 17

One organism benefits and the other is harmed (without death)

Question 18

Commensalism

Answer 18

One benefits and the other is unaffected.

Question 19

Biodiversity

Answer 19

The variety of plant or animal life.

Question 20

Importance of Biodiversity

Answer 20

Provides food, materials, resources and medicines
Increases adaptiveness
Balances Earth's ecosystems
Provides ecological life support
Protects ecological resources
Increases ecosystemic resources
Increases ecosystemic productivity
Promotes genetic variation

Question 21

Population Density

Answer 21

The measurement of a population per unit area.

Question 22

Population Distribution

Answer 22

The dispersion of a population within an area.

Question 23

Types of Densities

Answer 23

Low Density (territorial, solitary) and High Densities ( colonial)

Question 24

Types of Distrubution

Answer 24

Random (often in plants), Clumped (herding, highly-social) and Uniform (territorial, highly-dense)

Question 25

Bigeochemcial cycles

Answer 25

The flow of elements among living things and the global environment.

Question 26

Photosynthesis

Answer 26

Carbon Dioxide + Water -> sugar + oxygen

Question 27

Cellular Respiration

Answer 27

Sugar + oxygen -> carbon dioxide + water + energy

Question 28

Carbon Cycle Reservoirs

Answer 28

Atmosphere - Terrestrial Biosphere - Oceans - Sediments

Question 29

The Greenhouse Effect

Answer 29

Heat builds, Earth’s temperature rises

Question 30

Mitigation

Answer 30

Planting new forests to reduce atmospheric carbon dioxide concentrations.

Question 31

Stages of the Nitrogenous Cycle

Answer 31

Fixation - Ammonification - Nitrification - Dentification