Question

Select the correct statement

• A. Salvinia, Ginkgo and Pinus all are gymnosperms
• B. Sequoia is one of the tallest trees
• C. The leaves of gymnosperms are not well adapted to extremes of climate
• D. Gymnosperms are both homosporous and heterosporous

Answer 1

The Correct Option is B

 To determine the correct statement among the given options, let us evaluate each option based on the biological classifications and characteristics:

1. Option 1:

Salvinia, Ginkgo, and Pinus all are gymnosperms

• Salvinia is an aquatic fern, which is a type of pteridophyte, not a gymnosperm.
• Ginkgo and Pinus are indeed gymnosperms. However, because Salvinia is incorrectly identified as a gymnosperm, this statement is incorrect.

1. Option 2:

Sequoia is one of the tallest trees

• Sequoia refers to a genus of redwood trees, including the famous Sequoia sempervirens, known as the coast redwood, which holds the title for the tallest tree species in the world.
• This statement is correct based on established botanical records.

1. Option 3:

The leaves of gymnosperms are not well adapted to extremes of climate

• In reality, gymnosperm leaves, such as those of pines and firs, typically have adaptations like waxy coatings and needle-like shapes that minimize water loss, aiding their survival in extreme climates.
• This statement is incorrect.

1. Option 4:

Gymnosperms are both homosporous and heterosporous

• Typically, gymnosperms are heterosporous, producing two types of spores: microspores and megaspores. Homospory is more common in ferns and bryophytes rather than gymnosperms.
• This statement is inaccurate as gymnosperms are not homosporous.

Based on this evaluation, the correct statement is:

Sequoia is one of the tallest trees

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