Embryo implantation in humans. After fertilization the human embryo begins a 4 day long journey down the fallopian tube and into the uterus. When the embryo reaches the blastocyst stage it develops two distinct populations of cells. The outer cell mass,called the trophectoderm, and the inner cell mass.
Cat eye glasses. Named after their resemblance to the shape of a cat's eye, cat eye glasses are probably the most popular style of vintage eyeglasses. Though cat eye glasses were around since the 1950's, they reached their peak popularity when Audrey Hepburn wore a pair in the 1961 film Breakfast at Tiffany's.
The most important part of buying sunglasses is knowing your face shape (you can find yours out by reading my instructions here). Different frames suit different faces. Hereâs what works: Oval face: Just like with choosing a haircut, an oval face is the (ahem) âidealâ, meaning that most shapes will suit you.ou can also try gently curved square frames. You will look best if the frames arenât any wider than your cheekbones. Square face: You can reduce the squareness of your face by wearing frames that are soft & curvy while having a strong shape. Catâs-eye frames are ideal, as are ovals & round shapes.