Answer:
The phloem carries important sugars, organic compounds, and minerals around a plant. Sap within the phloem simply travels by diffusion between cells and works its way from leaves down to the roots with help from gravity. The phloem is made from cells called 'sieve-tube members' and 'companion cells'.
Atmosphere of the early earth + lighting = paleolightning
The prokaryotic cells that built stromatollites are classified as <span>cyanobacteria.</span>
"The density of a substance determines how much light is refracted"
Hope this helps :)
This process of dna copying would be mitosis.
