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Which set of plants represents gymnosper...

Which set of plants represents gymnosperms which grow in a temperate area with a branched stem and are having needle-like leaves to reduce the surface area ?

A

Cedrus , Eucalyptus

B

Cycas, wolffia

C

Cycas, Ginkgo

D

Pinus, Cedrus

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding which set of plants represents gymnosperms that grow in temperate areas with branched stems and needle-like leaves, we can follow these steps: ### Step 1: Understand the Characteristics of Gymnosperms - Gymnosperms are non-flowering plants that produce naked seeds, typically found in cones. - They often have adaptations to survive in specific environments, such as needle-like leaves to reduce water loss. **Hint:** Recall that gymnosperms are characterized by their seed structure and leaf adaptations. ### Step 2: Identify the Environment - The question specifies that we are looking for gymnosperms that grow in temperate regions, which are typically cold and may have high altitudes. - In these regions, plants often have needle-like leaves to minimize water loss. **Hint:** Temperate regions are characterized by distinct seasons and can be cold, influencing plant adaptations. ### Step 3: Analyze the Options - **Option 1: Cedrus and Eucalyptus** - Cedrus (Cedar) is a coniferous tree that fits the description, but Eucalyptus is a flowering plant native to Australia, not a gymnosperm. - **Option 2: Cycus and Wolffia** - Cycus is a non-flowering plant, but it does not have needle-like leaves and prefers warmer climates. Wolffia is the smallest flowering plant and aquatic, not a gymnosperm. - **Option 3: Cycus and Ginkgo** - Cycus is not a coniferous plant, and Ginkgo, while a gymnosperm, does not have needle-like leaves and is native to China, not specifically temperate regions. - **Option 4: Pinus and Cedrus** - Both Pinus (Pine) and Cedrus (Cedar) are coniferous trees that grow in temperate regions, have branched stems, and possess needle-like leaves. **Hint:** Compare each option against the characteristics of gymnosperms and their preferred habitats. ### Step 4: Conclusion - After analyzing all the options, the correct answer is **Pinus and Cedrus**, as both are gymnosperms that meet all the criteria mentioned in the question. **Final Answer:** The set of plants that represents gymnosperms which grow in a temperate area with a branched stem and needle-like leaves is **Pinus and Cedrus**. ---
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