For leaf lettuce, start picking the leaves when there is at least 5-6 mature leaves of usable size. Usable size means about 2 long for baby lettuce, and 5-6 long for more mature lettuce. Keep picking until a seed stalk appears or the leaves become bitter.
Definition of coextruded. : produced by simultaneous extrusion of multiple layers The carbonated beverage container is a can within a can; the 7-layer coextruded package consists of a lightweight fluted plastic shell inside a smooth plastic outer container. â Predicasts Technology Update, 30 Apr. 1983 coâextruded plastic cans.
Coelomate body plan. A coelom is a cavity lined by an epithelium derived from mesoderm. Organs formed inside a coelom can freely move, grow, and develop independently of the body wall while fluid cushions and protects them from shocks. Arthropods and mollusks have a reduced (but still true) coelom.