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Flashcards in Unit 4 Deck (13)
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1
Q

What is the aquatic environment subdivided into?

A

Freshwater biome
Marine biome
Estuarine biome (mix of the two)

2
Q

What can terrestrial environment be subdivided into?

A

tundra biome
Desert biome
Rainforest biome

3
Q

What are geographical zones?

A

Geographical zones have an example of the continents that consist of smaller habitats

4
Q

What is a community?

A

Comprises all the plants and animals which occupy a particular area

5
Q

What is an ecological Niche?

A

The position that any species occupies in its habitat

6
Q

Define an ecosystem

A

Interrelated organisms in a physical environment that has consistent or uniform features

7
Q

What are the two major factors within an ecosystem

A

The flow of energy through it

The cycling of matter within it

8
Q

Define ecology

A

Study of the inter-relationships between organisms and their environment

9
Q

Name the types of abiotic edaphic (soil) factors

A
Particle sizes - ranging from boulders to fine clay. Desert sand easily moves and is not stable
Mineral content
Water content
Organic matter
pH
Temperature
Topography
10
Q

Name some of the climatic abiotic factors

A
Light
Temperature
Water
Air and water currents
Humidity
11
Q

Name some biotic factors that can affect organism distribution

A
Competition
Predation
Antibiosis 
Dispersal (e.g of seeds)
Pollination
Mimicry - hover fly looks like wasp
Human influence
12
Q

Define population

A

A group of individuals of the same species, all occupying a particular area at the same time

13
Q

Define habitat

A

The part of the ecosystem where a particular organism lives