Phosphate compounds can be __________. They can then be transferred to __________
Question 6
6.
Question 8
8.
When phosphorus containing compounds from the bodies or __________ sink to the floor of the ocean __________. Over long periods of time phosphorus containing rock may move from __________ and then the cycle repeats.
Question 9
9.
Question 10
10.
Fertilizer carried in _______ may cause excessive growth of _______ or microbes that were previously _______ by the phosphorus.
Word bank:
abundant
limited
factor
runoff
algae
fish
Question 11
11.
Eutrophication is harmful when all of the _______ algae die and are _______ by microbes, large amounts of _______ are used up as their bodies are _______ down.
Word Bank:
oxygen
excess
nitrogen
decomposed
broken
fixed
Phosphorus is never encountered in the natural world
as a P
in its pure form
on its sole stae
mixed
Phosphorus is only encountered in the natural world as...
phosphates
phosphites
Borites
Borates
carbonates
When animals excrete waste or die, phosphates can be taken up by...
omnivores
herbivores
carnivores
detritivores
Phosphorus can be a limiting factor for ecosystems. A limiting factor...
is a resource that can determine the size of a population