Guard cells control when stomata open and close transport food down to the stem and roots are made of dead xylem and phloem cells store water and food multiple choice

What percentage of light hits earth's surface directly?

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

Where can a dna be found in a prokaryotic cell