Which of the following must be true to consider something to be alive ? a. it must be able to replicate its dna b. it must be able to response to light c. it must be able to covert energy from one form to another d. it must be to move

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

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.

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement