As in gymnosperms, the ovule becomes a seed, encasing the embryo and endosperm in a seed coat. But unlike gymnosperms, in angiosperms the ovary containing the ovules develops into a fruit after fertilization.
Captain James Cook was the first to cross the Antarctic Circle, doing so in 1773. However, pack ice and the freezing of his ship's sails prevented him from reaching the Antarctic continent itself. The same thing happened when he again crossed the Antarctic Circle a year later.
Last week, a team found and collected microbes in a lake hidden under more than a half-mile of ice. (Related: Race Is On to Find Life Under Antarctic Ice.) Among other things, the discovery may shed light on what lies under the icy moons of Jupiter and Saturn.