Nutrient Cycles

Question 1

All of the substances that occur in organisms cycle through ecosystems in a cyclic path involving both biological and chemical processes

Answer 1

biogeochemical cycle

Question 2

True or False: Generally, the bulk of these substances are contained within the bodies of organisms but rather exist in the atmosphere, water or in rocks.

Answer 2

False, not contained

Question 3

Primarily enter bodies of organisms from the atmosphere (3 elements)

Answer 3

Carbon (in form of carbon dioxide), nitrogen and oxygen. (C2O,N,O)

Question 4

Elements that are required for
plant growth come from rocks. (8 elements)

Answer 4

phosphorus, potassium, sulfur, magnesium, calcium, sodium, iron and cobalt. (P, K, S, Mg, Ca, Na, Fe, Co)

Question 5

True or False: The cycling of materials in ecosystems begins when they are incorporated from the atmosphere or from weathered rock into the bodies of organisms.

Answer 5

True

Question 6

TrueCycling of organisms sometimes pass from these organisms into the bodies of other organisms that feed on them and ultimately through decomposition, they are returned to the non-living world.

Answer 6

True

Question 7

TrueCycling of organisms sometimes pass from these organisms into the bodies of other organisms that feed on them and ultimately through decomposition, they are returned to the non-living world.

Answer 7

True

Question 8

Well known and important cycles includes: (6 cycles)

Answer 8

water cycle, the carbon cycle, the nitrogen cycle, the oxygen cycle, the phosphorus cycle and the
sulphur cycle. (H2O, C, N, O, P, S)