In general, a signal transmitted via a phosphorylation cascade (select one):

a. is propagated by a steroid receptor.
b. is initiated by a phosphorylase enzyme.
c. is turned off by a kinase enzyme.
d. results in a conformational change in each phosphorylated protein.

Answer is E. results in conformational change in each phosphorylated proteins.

Explanation:

Phosphorylation cascade or of a series of protein is a biochemical modification occurring to an or more amino acids on a protein, after the translation of the protein by a ribosomes, where a covalent attachment of a phosphate group to a tyrosine and serine residue is observed.

thinking it would be d not too sure but i think it's right

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.