For example, an individual can be AB, D positive, and at the same time M and N positive (MNS system), K positive (Kell system), Lea or Leb negative (Lewis system), and so on, being positive or negative for each blood group system antigen.
Nearly every list of easy-to-grow vegetables starts with lettuce, and with good reason: so long as you plant it at the right time, it will grow from seed with little attention. The right time is when the soil is cool, in the spring and fall. In Arkansas, you can plant lettuce seeds from February to April, and again in September for a fall harvest.
Leave some space at the top. Gently place a few tomato seeds in each. Then cover the seeds with more potting soil. Water the tomato seeds and place them on a tray in a warm window. Water every couple days until sprouts start. Wait for each plant to have at least three leaves. Transplant the seedlings to your garden.eave some space at the top. Gently place a few tomato seeds in each. Then cover the seeds with more potting soil. Water the tomato seeds and place them on a tray in a warm window. Water every couple days until sprouts start. Wait for each plant to have at least three leaves. Transplant the seedlings to your garden.