The correct answer is: C. only conifers
Conifers are a type of gymnosperm, which means they are seed-bearing plants that do not have flowers. They are the most common type of tree in the world, and they are found in a variety of habitats, including forests, mountains, and deserts. Conifers are known for their needle-like leaves, which help them to conserve water in dry climates. They also produce cones, which contain the seeds.
Angiosperms are a type of plant that has flowers. They are the most diverse group of plants on Earth, and they include trees, shrubs, herbs, and vines. Angiosperms are characterized by their flowers, which are reproductive organs that produce seeds. The seeds of angiosperms are enclosed in fruits, which help to protect them and disperse them.
The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with conifers. This is because conifers are well-adapted to the cold climates of these regions. They have needle-like leaves that help them to conserve water, and they produce cones that can survive in cold weather. Angiosperms, on the other hand, are not as well-adapted to cold climates. They have broad leaves that lose water more easily, and their seeds are not as well-protected from the cold. As a result, angiosperms are not as common in cold climates as conifers.
Here is a brief explanation of each option:
- Option A: all gymnosperms, except conifers. This is incorrect because conifers are a type of gymnosperm.
- Option B: only angiosperms. This is incorrect because conifers are more common than angiosperms in cold climates.
- Option C: only conifers. This is the correct answer because conifers are well-adapted to cold climates and are the most common type of tree in the world.
- Option D: angiosperms and all gymnosperms except conifers. This is incorrect because conifers are a type of gymnosperm.