What does slate turn into if it is exposed to heat and pressure

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.

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

There are only about 250,000 known fossil species. true or false