AB+CD (reactant~higher on graph) ---> AC+BD (product~lower on graph)

In this reaction .

a. entropy has decreased
b. CD is a product
c. the products have been rearranged to form reactants
d. AC is a reactant
e. the products have less potential energy than the reactants

Option E) the products have less potential energy than the reactants

Explanation:

Though the actual graph is not displayed, but, whenever reactants occupy a position higher than the product on the graph of reaction coordinate vs time taken, it means the reactants (AB+CD) have molecules with higher energy bonds than the products AC +BD

Thus, the reaction of AB + CD to yield AC+BD will occur spontaneously with the release of energy.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.