Heads ruin the spirit, Hearts define the spirit, Tails build the spirit.

The Cell as the Basic Unit of Life Cells are the basic unit of life. Although cells differ from one another in shape and function—such as muscle cells, nerve cells, and plant cells—there are fundamental principles common to all living cells. Cells of the same type form a tissue, several tissues form an organ, and several organs together make up the complete organism. For example, the heart is composed of muscle tissue, connective tissue, and epithelial tissue—all of which together form a...

The grapevine is a perennial climbing plant of the family Vitaceae, genus Vitis, characterized by a woody trunk, tendrils for climbing, deciduous leaves, and fruit clusters (grapes). The cultivated grapevine is grown primarily for wine production, fresh consumption, and raisins, and develops through a seasonal cycle of budburst, vegetative growth, flowering, ripening, and winter dormancy.