carbon and nitrogen cycle Flashcards
1
Q
draw carbon cycle
A
just draw it
2
Q
nitrogen cycle
A
just draw it
3
Q
percentage energy passed on between trophic levels
A
10%
4
Q
reason why energy passed between trophic levels is lost
A
respiration, waste products, not all material consumed, heat loss
5
Q
what are nitrates used for in living organisms. how?
A
to make amino acids and protein for growth and repair. they are assimilated
6
Q
relationship of nitrogen fixing bacteria growing in root nodules and the plant
A
symbiotic. mutually beneficial. bacteria fix nitrogen in air into NH4 for the plant to assimilate and make proteins. bacteria gets a habitat to live in
