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a leaf with certain areas that lack chlorophyll. The leaf therefore contains both green and non-green parts.
the dramatic increases in crop production around the world from the second half of the twentieth...
refers to any variation in the nucleotides, genes, chromosomes, or whole genomes of organisms....
membrane-bound compartments inside chloroplasts and cyanobacteria. They are the site of the...
elongated cells in the xylem of vascular plants that transport water and mineral salts.