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.
Spring Dates. If you are growing your tomatoes from seeds you need to start them 5 to 8 weeks before setting them out in the garden. This works out to between January 5 to January 26th. Don't forget to allow a couple of days for the plants to harden-off in the shade before planting.