First, all plants undergo an alternation of generations, between a haploid gametophyte stage and a diploid sporophyte stage. In the most primitive plants, like mosses, the gametophyte is dominant (i.e. it's big and green). In higher plants like ferns and fern allies, the sporophyte stage is dominant.s we pass from mosses to ferns, we see a gradual transition from primitive to modern traits. There are two major trends you should focus on in today's lab. The first is a transition in life cycles, the second is a change in basic internal structure.
Diamond Pricing: 1 carat diamonds are an affordable option for many. The price range for 1 carat diamonds is between $3,080 and $26,950 per carat. Round Brilliant Cut stones have a 6.5mm diameter. 1 carat diamonds are often sold because they make for great shoulder stones.
As a general rule, the heavier the diamond, that is, the larger the carat weight, the more expensive it becomes. Price per carat is one of the best ways to compare the cost of similar diamonds. To calculate this, simply divide the cost of each stone by its carat weight.Caratâ is the term used to refer to the weight of a diamond (not to be confused with the term âkaratâ referring the purity of gold). One carat is defined as one fifth of a gram or 200 milligrams, approximately the weight of a five pound note.