Difference between heat of neutralization and enthalpy of neutralization

Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation. c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation. d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.

Enzymes are proteins that speed up reactions by providing an additional energy source supplying additional molecules for the reaction removing inhibitors that slow down reactions lowering the amount of energy required

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm