Answer:
Phloem and xylem are closely associated and are usually found right next to one another. One xylem and one phloem are known as a ‘vascular bundle’ and most plants have multiple vascular bundles running the length of their leaves, stems, and roots.
Answer: This is called allopatric speciation. The species continue to evolve in the own way, adapting to their different conditions. The eventually become two different species adapted to each environment.
During meiosis, genetic recombination may occur more than once through the process of cell division, resulting in an increase in genetic variability.
The answer is litter carbon dioxide bubbles
I hope that helped
1st question is FDA
3rd is endangered species act