The option that is not an exception in angiosperms is "Autotrophic nutrition".

Here's why:

1. Double Fertilization: This is a unique feature of angiosperms where one sperm cell fertilizes the egg cell to form the zygote, and the other sperm cell fertilizes the two polar nuclei to form the endosperm. This is not an exception but a characteristic feature of angiosperms.

2. Secondary Growth: This is also a common feature in many angiosperms. Secondary growth is the growth in thickness or girth of the plant, and it is common in woody plants and trees, which are mostly angiosperms.

3. Presence of Vessels: Vessels are part of the xylem tissue in plants and are responsible for the transportation of water and minerals. They are present in most angiosperms, but not all. However, their presence is not an exception.

4. Autotrophic Nutrition: All plants, including angiosperms, are autotrophs. They produce their own food through photosynthesis using light energy, carbon dioxide, and water. This is a basic feature of all plants, not an exception. Therefore, "Autotrophic nutrition" is not an exception in angiosperms.

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The option that is not an exception in angiosperms is "Autotrophic nutrition".

Here's why:

1. Double Fertilization: This is a unique feature of angiosperms where one sperm cell fertilizes the egg cell to form the zygote, and the other sperm cell fertilizes the two polar nuclei to form the endosperm. This is not an exception but a characteristic feature of angiosperms.

2. Secondary Growth: This is also a common feature in many angiosperms. Secondary growth is the growth in thickness or girth of the plant, and it is common in woody plants and trees, which are mostly angiosperms.

3. Presence of Vessels: Vessels are part of the xylem tissue in plants and are responsible for the transportation of water and minerals. They are present in most angiosperms, but not all. However, their presence is not an exception.

4. Autotrophic Nutrition: All plants, including angiosperms, are autotrophs. They produce their own food through photosynthesis using light energy, carbon dioxide, and water. This is a basic feature of all plants, not an exception. Therefore, "Autotrophic nutrition" is not an exception in angiosperms.

Knowee AI · Accepted Answer

The option that is not an exception in angiosperms is "Autotrophic nutrition".

Here's why:

1. Double Fertilization: This is a unique feature of angiosperms where one sperm cell fertilizes the egg cell to form the zygote, and the other sperm cell fertilizes the two polar nuclei to form the endosperm. This is not an exception but a characteristic feature of angiosperms.

2. Secondary Growth: This is also a common feature in many angiosperms. Secondary growth is the growth in thickness or girth of the plant, and it is common in woody plants and trees, which are mostly angiosperms.

3. Presence of Vessels: Vessels are part of the xylem tissue in plants and are responsible for the transportation of water and minerals. They are present in most angiosperms, but not all. However, their presence is not an exception.

4. Autotrophic Nutrition: All plants, including angiosperms, are autotrophs. They produce their own food through photosynthesis using light energy, carbon dioxide, and water. This is a basic feature of all plants, not an exception. Therefore, "Autotrophic nutrition" is not an exception in angiosperms.

Which one is not an exception in angiosperms?Double fertilizationSecondary growthPresence of vesselsAutotrophic nutrition

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