EVERYDAY SCIENCE

Detailed explanation-1: -Angiosperms are called flowering plants, whereas gymnosperms are called non-flowering plants. Angiosperms have seeds enclosed in an ovary (a fruit) whereas gymnosperms have no flowers or fruits and have naked seeds on the surface of leaves.

Detailed explanation-2: -Fern does not belong to the Gymnosperm. The Gymnosperms are the plants in which the ovules remain exposed before and after fertilization and are not enclosed by ovary wall. Cycas, Pinus and Ginkgo are the examples of Gymnosperm. Fern is an example of Pteridophytes.

Detailed explanation-3: -Taxonomists recognize four distinct divisions of extant (nonextinct) gymnospermous plants-Pinophyta, Cycadophyta, Ginkgophyta, and Gnetophyta-with 88 genera and more than 1, 000 species distributed throughout the world.

Detailed explanation-4: -Gymnosperms are plants that have seeds but no flowers. The seeds of these plants are on cones or in cups. Most gymnosperms are evergreen. Gymnosperms include conifers, cycads and the ginkgo.

Detailed explanation-5: -The four main divisions of gymnosperms are Coniferophyta, Cycadophyta, Ginkgophyta, and Gnetophyta. Gymnosperms are often found in temperate forest and boreal forest biomes. Common types of gymnosperms are conifers, cycads, ginkgoes, and gnetophytes.