B5 - Energy flow Flashcards
1
Q
Types of competition
A
interspecific competition intraspecific competition (bigger impact)
2
Q
Livings factors that cause environmental change
A
Disease
predators
prey and food
competitors
3
Q
Non living factors of environmental change
A
temperature
rainfall
air or water pollution
4
Q
What happens each time you move up a trophic level
A
Less energy and biomass
5
Q
Carbon into air
A
fossil fuels
burning
respiration
released from decay
6
Q
Carbon removed from air
A
photosynthesis
7
Q
Four main steps of nitrogen cycle
A
Nitrogen fixation
Decomposition
Nitrification
Denitrification
8
Q
Nitrogen fixation
A
Lightning
Nitrogen fixing bacteria (legume plants)
9
Q
Decomposition
A
Dead animals and plants
Proteins and urea into ammonium compunds
10
Q
Nitrification
A
NITRIFYING BACTERIA INTO NITRITES AND THE NITRATES
11
Q
Denitrification
A
nitrates into nitrogen gas by denitrifying bacteria
anaerobic conditions
