Activity 5: Nutrient Cycling

Question 1

Natural pathways wherein essential elements of living matter are circulated

Answer 1

Biogeochemical cycle

Question 2

Stored and a ready supply source

Answer 2

Reservoir

Question 3

Absorbed and being used by an organism

Answer 3

Assimilation

Question 4

Left the organisms’ body and back to the environment

Answer 4

Release

Question 5

Large store of a nutrient at some stage in a biogeochemical cycle; Large, slow moving

Answer 5

Reservoir pool

Question 6

Smaller but more active portion that is rapidly exchanging between organisms and their immediate environment

Answer 6

Cycling pool

Question 7

Perfect biogeochemical cycle have a large available abiotic pool of the substance and involve existence of many negative feedbacks (e.g. nitrogen, oxygen, carbon, and water cycles)

Answer 7

Gaseous Cycles

Question 8

Imperfect cycles do not have a large available pool of the substance as well as feedback controls (e.g. sulfur and phosphorus cycle)

Answer 8

Sedimentary cycles

Question 9

The available pool of sedimentary cycles

Answer 9

Earth’s crust