The primitive nature of the whisk fern is underscored by its having flagellated sperm, unlike the more advanced flowering plants, the angiosperms. The simple branched stems of Psilotum recalls the structure of the rhyniophytes, and the whisk fern is unique among living vascular plants in its lack of roots and leaves.
WHERE DOES THE ENERGY COME FROM TO MAKE ATP AT THE CHLOROPLAST???? from the motion of hydrogen ions
https://quizlet.com/492462564/chapter-14-human-genetics-karyotype-activity-flash-cards/
1st way is to stop water pollution
2nd way is to stop the lack of population of a spices
