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.
Planting Grass Seed in New York. Planting grass seed in upstate New York should be done between August 15 and September 15 and between August 15 and October 1 in south-eastern New York. Seeding in late summer/early fall provides warm soils, cool temperatures, and autumn rains that create a good environment for seed germination.