Mycorrhizae improve the nutrition of many plants by ________. ...

[michelleunicorn]

Mycorrhizae improve the nutrition of many plants by ________.
 
  A) masking P-fixation sites on the surface of certain soil minerals
  B) making the root cell membrane more permeable to phosphate ions
  C) transporting phosphorus through the soil to the plant root
  D) fixing atmospheric phosphorus into forms readily used by plants
  E) readily dissolving iron and aluminum phosphate compounds

Question 2

In a soil at pH 5.0, most of the inorganic P is likely to be in the form of ________.
 
  A) hydrous iron and aluminum phosphates
  B) hydroxy apatites
  C) tricalcium phosphates
  D) phospholipids
  E) monocalcium phosphates

[pocatato]

Answer to Question 1

C

Answer to Question 2

A

[michelleunicorn]

Gracias!

[xiaomengxian]

TYSM