Ecology

Question 1

Biology

Answer 1

The study of life

Question 2

The Sun

Answer 2

The primary source of energy for all living organisms

Question 3

Diversity

Answer 3

The wide variety of organisms that exist

Question 4

Characteristics of LIVING organisms

Answer 4

Composed of cells
Organised
They grow
They move
They feed
They reproduce

Question 5

Metabolism

Answer 5

All the chemical reactions in an organism

Question 6

Continuity

Answer 6

The ability of an organism to exist from one generation to the next

Question 7

Necessary characteristic for survival of a species

Answer 7

Reproduction

Question 8

Ecology

Answer 8

The study of interactions between organisms and their environment

Question 9

Food chain

Answer 9

Sequence of organisms showing transfer of energy from one to the next

Question 10

Edaphic factor

Answer 10

(relating to) soil

Question 11

Quantitative study

Answer 11

Measuring the amount of organisms

Question 12

Omnivore

Answer 12

Organism that eats plants and animals

Question 13

Contest competition

Answer 13

Struggle for a resource in short supply, with one winner

Question 14

Scramble competition

Answer 14

Both organisms get some of the resource

Question 15

Ecosystem

Answer 15

Organisms and their interactions with their environment, e.g earth

Question 16

Community

Answer 16

All organisms found in an ecosystem

Question 17

Food web

Answer 17

Interconnected food chains
OR more than one species found at each trophic level

Question 18

Nitrogen Fixation

Answer 18

The conversion of nitrogen gas into a biologically available form
e.g bacteria, lightning

Question 19

Denitrification

Answer 19

The process by which fixed nitrogen is converted back to nitrogen gas

Question 20

Decomposition (nitrogen cycle)

Answer 20

Dead plants/animals are broken down to release ammonia

Question 21

Pollution

Answer 21

Any harmful addition to the environment

Question 22

Producer

Answer 22

Only member of the food chain that can make its own food (from the sun’s energy)

Question 23

Population

Answer 23

All the organisms of a species living in an area

Question 24

Predation

Answer 24

Hunting killing and eating of another organism

Question 25

Fauna

Answer 25

Animals

Question 26

Biosphere

Answer 26

Part of the earth where life can exist

Question 27

Symbiosis

Answer 27

Relationship between species involving benefit

Question 28

Carbon cycle (events)

Answer 28

Photosynthesis/respiration/decay or decomposition/combustion/carbon sinks

Question 29

Factors that effect human population

Answer 29

War/Famine/disease

Question 30

Niche

Answer 30

Role of an organism in its ecosystem

Question 31

Nutrient recycling

Answer 31

reuse of nutrients

Question 32

Structural Adaptation

Answer 32

Change in physical structure (of an organism)

Question 33

Why do organisms need nitrogen

Answer 33

To make protein, DNA or ATP

Question 34

Conservation

Answer 34

Maintenance of Biodiversity

Question 35

Exotic species

Answer 35

species introduced from different ecosystem