AP BIOLOGY

PLANTS

CLASSIFICATION OF PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are the two main differences between angiosperms and gymnosperms?
A
Angiosperms have flowers, and their seeds are protected inside a fruit. Gymnosperms do not.
B
Angiosperms do not have flowers, and their seeds are protected inside a fruit. Gymnosperms have flowers,
C
Angiosperms have their seeds are protected inside a fruit. Gymnosperms have their seeds develop inside cones. The seeds are protected only by the seed coat.
D
Gymnospermshave their seeds are protected inside a fruit. Angiosperms have their seeds develop inside cones. The seeds are protected only by the seed coat.
Explanation: 

Detailed explanation-1: -Angiosperms, are also known as flowering plants and having seeds enclosed within their fruit. Whereas gymnosperms have no flowers or fruits and have naked seeds on the surface of their leaves. Gymnosperm seeds are configured as the cones.

Detailed explanation-2: -1. Gymnosperms do not form fruit, angiosperm form fruit. 2. Gymnosperms have naked seeds, angiosperms have enclosed seeds.

Detailed explanation-3: -The key difference between angiosperms and gymnosperms is how their seeds are developed. The seeds of angiosperms develop in the ovaries of flowers and are surrounded by a protective fruit. Gymnosperm seeds are usually formed in unisexual cones, known as strobili, and the plants lack fruits and flowers.

Detailed explanation-4: -Technically, gymnosperms are robust and can survive in a variety of habitats. However, angiosperms have two novel features – fruit and flowers. The fruits aid in dispersing seeds, while the flowers provide protection for the ovule. Hence, angiosperms are considered better than gymnosperms.

Detailed explanation-5: -Gymnosperms have naked seeds, don’t have flowers or fruits, and have a haploid endosperm in the seeds (endosperm is produced before fertilization), while Angiosperms have enclosed seeds, flowers, fruits, and have a triploid endosperm in the seed (endosperm produced during triple fusion).

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