PLS HELP!! ASAP! When the leaves on deciduous trees drop, why are the decaying leaves
so important?
A. They keep the ground dry
B. They give shade to organisms living in the soil
C. They provide food for large mammals
D. They make the soil more fertile

Which of the following statements regarding anfinsen's denaturing experiments with ribonuclease a (rnase a) are valid? exposing the denatured protein to air oxidation and then dialysis to remove urea restored the protein to its original functionality. removing urea by dialysis and then allowing air oxidation of the denatured protein restored the protein to its original functionality. denaturing the protein with both urea and β-mercaptoethanol yielded an inactive protein. anfinsen concluded that protein folding is determined by its primary sequence.

Explain why phospholipid molecules form a bilayer. (3 marks)

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation