Match the characteristics below to either gymnosperms or angiosperms.

nonflowering

exposed seeds

garden flowers and tomatoes

seeds enclosed in fruit

pine or fir trees

flowering

The right matches are:

1. Nonflowering  ==> Gymnosperm

Some plants do not have real flowers, this is the case of pines and firs. Eggs are not protected in an ovary and are placed naked under a shell hence their name Gymnosperms which means naked seeds. There is no petals or sepals. The egg after fertilization will give a seed but there will be no fruit.

2. Exposed seeds  ==> Gymnosperm

The term "gymnosperm" means "bare seed", which allows us to define this plant class in a broad sense, containing a certain number of phyla that have arrived at the same evolutionary stage. Gymnosperms are the intermediates between vascular cryptograms (Pteridophytes) and Angiosperms.

3. Garden flowers and tomatoes  ==> Angiosperms

Tomato plants belong to the group of plants called flowering plants or angiosperms. The tomato plant reproduces sexually, which means that female and male organs are needed to produce seeds. Each tomato seed contains a tiny plant. When conditions are adequate, the tomato seeds germinate.

4. Seeds enclosed in fruit  ==> Angiosperms

In angiosperms, the eggs are located in a closed ovary; they are thus protected. The pollen grain develops a pollen tube to reach the embryonic sac of the egg. Fertilization is double; the first begets the seedling; the second generates a fostering embryo, the albumen. The ovary evolves into a fruit after fertilization.

5. Pine or fir trees  ==> Gymnosperms

Fir and pine are trees, and more specifically conifers, which belong to the family Pinaceae.

The fir tree is a medium-altitude tree of which there are about forty species in the temperate regions of the northern hemisphere in particular.

Pine, finally, has needles finer than those of fir. They are also grouped in bundles of two, three or five. Its cones are also falling.

6. Flowering ==> Angiosperms.

The flowering plants form on Earth most of the plants with about 350000 described species, with more than 2000 new taxa formalized each year. The flowering plants, or phanerogams, integrate trees and grasses because these plants also produce flowers, although sometimes more discreet. These are angiosperms. A flowering plant, after the flowering stage, gives fruits after pollination.

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