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.
Diamonds may be cherished for their sparkle, but for the investment-minded, the future value of a given diamond is even more coveted. Whether a diamond will increase or decrease in value depends on a combination of overall market forces and internal proclivities of the diamond market.As of June 2015, prices for 1 carat to 1.49 carat round diamonds ranged from $1,792 to $20,760, depending on their clarity and color ratings.iamonds that meet the classification of investment-grade diamonds, exhibiting the higher-end of the diamond-grading criteria of cut, clarity, color and carat rarely depreciate, notes eBay, and see greater appreciation in value over time than do standard diamonds.