Ecosystem Classification And Relationsips

Question 1

Ecosystems

Answer 1

Includes the organisms in an area (biotic factors), their physical environment (abiotic factors ) and their interactions of these factors.

Question 2

Ecology

Answer 2

is the study of relationships between organisms and their physical and biotic environments

Question 3

Biosphere

Answer 3

Region within which all living things found on earth
Extends to the earths crust
Broken into biomes

Question 4

Community

Answer 4

The interacting populations of different species inhabiting an area at one particular time

Question 5

Biome

Answer 5

Defined as a large scale community of organisms shaped by similar climate, animals and plants. They can be further classified into ecosystems.

Question 6

Terrestrial biomes

Answer 6

Recognised for all the major climate regions of the world and are classified on basis of their predominant vegetation type.
The same biome may occur in widely separated regions
Examples: tropical rainforests, desert and tundras
Aquatic life determined by the amount

Question 7

Terrestrial environments

Answer 7

A land environment such as tundras, deserts, open forests and temperate grasslands are mainly the result of climate variation

Question 8

Factors that influence where biomes are located

Answer 8

• Water currents affect weather and climate, which in turn affect the type of biome
• Air currents and wind affect weather and climate which in turn type of biome
• Vegetation patterns are determined largely by climate but can be modified human activity
• Rainfall
• Temperature
• Climate
  temperature, water, light and wind are the four main elements of climate
• Aquatic environments:
  
  • Include both marine (salt water) and freshwater environments
  • Make up the largest part of the biosphere

Question 9

Biotic factors

Answer 9

include:
- Producers - usually green plants that make their own food through photosynthesis
- Consumers - usually animals which feed on plants or other animals
- Decomposers - which live on, and decompose, dead organic matter.

Question 10

Abiotic factors

Answer 10

include:
- Physical factors such as temperature, light, humidity, winds, slope and ocean currents
- In organic matter such as carbon, nitrogen, oxygen and water
- Energy in the form of heat and light from the sun

Question 11

Ecosystems include

Answer 11

All of the organisms the community
And their physical environments (abiotic)
- Light
- The medium e.g. water, soil, air
- Substrate e.g. soil
- Climate (atmospheric) including temperature, rainfall, wind
Can be very large or small or artificial
Can include many different habitats

Question 12

Classifying ecosystems using biotic features

Answer 12

Ecosystems are classified by abiotic factors but also by their component species and species interactions (biotic factors)
Ecosystems are often named after their dominant species

Question 13

Competition

Answer 13

Is when individuals compete for a resource that limits their survival and reproduction

Question 14

Collaboration

Answer 14

Is when organisms work together to benefit all; this can be intraspecific (relationships between members of different species) or interspecific (occurs between members of the same species)

Question 15

Predation

Answer 15

Is when one species (predator) kills and/or eats another species (prey) for food

Question 16

Disease

Answer 16

The interaction between a disease-causing organisms and the host can also affect the biodiversity of an ecosystem

Question 17

Symbiosis

Answer 17

Is the general term for a relationship between individuals of two or more species that benefit at least one species. There are three main types

Question 18

Habitat

Answer 18

A physical area or environment within an ecosystem where an individual of a species lives, feeds and reproduces

Question 19

Niche

Answer 19

The role an organism has in its ecosystem and the conditions it requires to persist, including food sources, feeding, activities, spatial habitat, reproduction and relationships

Question 20

Topography

Answer 20

The arrangement of physical features, both natural and artificial, of an area

Question 21

Populations

Answer 21

A group of individuals belonging to the same species, living in the same habitat at the same time

Question 22

Climate

Answer 22

Atmospheric weather of an area, measured and averaged over a long period of time. Temperature, water, light and wind are the four main elements of a climate

Question 23

Aquatic environments

Answer 23

Include both marine (saltwater) and freshwater environments
They make up the largest part of the biosphere

Question 24

Parasitism

Answer 24

Between two species, a parasite and a host. The parasite is an organism that lives on or in another organism, known as the host
Ectoparasites, live and feed on the external surface of their host organism
Endoparasites, live and feed within there own host organism

Question 25

Mutualism

Answer 25

Both species in the relationship benefit and neither is harmed

Question 26

Commensalism

Answer 26

One species benefits and the other neither benefits not is harmed