Carlsbad caverns is unusual because the cave was originally carved from
a. iron oxide mixing with calcium carbonate
b. sulfuric acid rising from lower formations
c. acidic rainwater infiltrating through limestone
d. repeated rising and lowering of the water table

What do animals wth echolocation have in common other than echolocation

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.

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.