Arkansas Democrat Gazette-I am very upset that I buy newspapers every Sunday. I am very upset that I buy newspapers every Sunday and pay $2.00 and always get coupons and this week the week before Christmas there are none!
Definitions. Cleavage-The tendency of a mineral to break along flat planar surfaces as determined by the structure of its crystal lattice. These two-dimensional surfaces are known as cleavage planes and are caused by the alignment of weaker bonds between atoms in the crystal lattice.leavage and fracture describe different ways in which a mineral can break. Cleavage-The tendency of a mineral to break along flat planar surfaces as determined by the structure of its crystal lattice.
noun. A type of cleavage on the basis of the potentiality of blastomeres in which the blastomeres (resulting from cleavage) are qualitatively equipotential and each has the ability to develop into a complete embryo when isolated since its developmental fate is not determined in the early embryonic stage.n embryonic cleavage is said to be indeterminate when it produces cells with a complete set of undisturbed animal or vegetal cytoarchitectural features and when isolated can individually develop into a whole organism.