Which of the following accurately describes the structure of dna?
a. dna consists of four bases: a, g, c, and u.
b. dna is in the form of antiparallel strands twisted as a double helix.
c. a always pairs with c, and g always pairs with t.
d. dna is made up of nucleotides, containing a phosphate group, a base, and another phosphate group.

Which of the following best describes homeostasis? a. keeping the internal environment in a stable state b. keeping the external environment in a stable state c. beneficial characteristics resulting from mutation d. reproduction that results in offspring identical to the parent.

Which factor that affects biodiversity?

An enzymatic hydrolysis of fructose-1-p, fructose-1-p(aq) + h2o(l) - fructose (aq) + pi (aq) was allowed to proceed to equilibrium at 25°c. the original concentration of fructose-1-p was 0.2 m, but when the system had reached equilibrium, the concentration of fructose-1-p was only 6.52 x 10^-5 m. calculate the equilibrium constant for this reaction and the free energy of hydrolysis of fructose-1-p.