4 - ECOLOGY + THE ENVIRONMENT Flashcards
1
Q
POPULATION
A
- organisms of one species living together in the same place
2
Q
COMMUNITY
A
- all the different populations that live together in an area
3
Q
HABITAT
A
- the environment in which an organism lives
4
Q
ECOSYSTEM
A
- all the living and non living things that interact in an area
5
Q
ABIOTIC FACTORS
A
- non-living environmental factors that can affect the organisms in ecosystems
6
Q
BIOTIC FACTORS
A
- interaction associated with living organisms
7
Q
EXAMPLES OF ABIOTIC FACTORS
A
- light intensity
- soil moisture level
- temperature
- oxygen levels
- soil pH
- availability of minerals and nutrients
- carbon dioxide levels
- availability of water
8
Q
EXAMPLES OF BIOTIC FACTORS
A
- gazing
- diseases
- predation
- competition for food
- competition for shelter
- bacteria
- fungi
9
Q
FOOD CHAINS
A
- shows the feeding relationships between living things ( what eats what in a habitat )
10
Q
FOOD WEBS
A
- shows all the food chains in an ecosystem, showing the flow of energy in a habitat
11
Q
INTERDEPENDENCE
A
- change in population of one organism will affect the population of another organism
12
Q
PYRAMIDS OF NUMBERS
A
- shows the population of each organism at each trophic level in a food chain
13
Q
PYRAMIDS OF BIOMASS
A
- shows the transfer of energy at each trophic level by calculating the dry mass of each population of species
14
Q
PYRAMIDS OF ENERGY TRANSFER
A
- shows the transfer of energy at each trophic level from one trophic level to the next
15
Q
IN A FOOD CHAIN ENERGY IS LOST TO:
A
- respiration
- not eaten
- not digested
( -excreted as waste )
