Nmdcat Practice Paper from PMDC Syllabus | mosaicbro.com

Nmdcat Practice Paper from PMDC Syllabus

7 of 197 questions (Page 3 of 29)

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15 What does the fossil record show about life on Earth?
Correct Answer: C
Explanation: Fossils demonstrate gradual changes in species over geological time.
16 What is genetic drift?
Correct Answer: B
Explanation: Genetic drift is random fluctuation of allele frequencies, especially in small populations.
17 Which of the following best represents convergent evolution?
Correct Answer: A
Explanation: Convergent evolution produces analogous structures (e.g., bird/bat wings) with similar functions but different origins.
18 The evolutionary history of a species is known as:
Correct Answer: C
Explanation: Phylogeny traces the evolutionary relationships among species.
19 What is the result of adaptive radiation?
Correct Answer: B
Explanation: Adaptive radiation (e.g., Darwin's finches) occurs when a single ancestor diversifies into multiple niches.
20 What is the term for a structure that no longer serves its original purpose?
Correct Answer: C
Explanation: Vestigial structures (e.g., human tailbone) are remnants of functional traits in ancestors.
21 What was the significance of Darwin’s voyage on the HMS Beagle?
Correct Answer: C
Explanation: Darwin's observations (e.g., Galápagos finches) provided evidence for natural selection.
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