There are two major groups of seed plants gymnosperms Exerci

There are two major groups of seed plants, gymnosperms (Exercise 24) and angiosperms. Compare these two groups of seed plants with respect to the following features: Gymnosperms Angio sperms Feature a. type of reproductive structure b. source of nutrition for developing embryo c. enclosure of mature seed

Solution

Feature

Gymnospersm

Angiosperms

Type of reproductive structure

Cones

Flowers

Source of nutrition for developing embryo

Female gametophyte tissue (X)

Endosperm (3X)

Enclosure of mature seed

Seed integuments are present, but ovary is absent, so seeds exposed directly.

Seed integument is present, All ovules are present in Ovary, later Ovary turns in to fruit.

Feature	Gymnospersm	Angiosperms
Type of reproductive structure	Cones	Flowers
Source of nutrition for developing embryo	Female gametophyte tissue (X)	Endosperm (3X)
Enclosure of mature seed	Seed integuments are present, but ovary is absent, so seeds exposed directly.	Seed integument is present, All ovules are present in Ovary, later Ovary turns in to fruit.