SSLC 10th std Biology Ch 2 Paths of Evolution MCQs

[Mashbal]

Below are multiple-choice questions (MCQs) with answers, based on Chapter 2 of the Kerala 10th Standard Biology Textbook, "Paths of Evolution." The questions cover key concepts, examples, and include application-level questions to test understanding and critical thinking for examination preparation. Each question has four options, with the correct answer and a brief explanation provided.    These MCQs comprehensively cover the chapter’s content, ensuring thorough preparation with a mix of factual and application-based questions.

Some questions from the section are:

• What caused the diversity in beak shapes among Galapagos finches?
  

a) Acquired traits inherited over time
b) Variations selected by food availability
c) Direct environmental changes to beaks
d) Migration to new islands
Answer: b) Variations selected by food availability
Explanation: Natural selection favored beak variations suited to different food sources, leading to diversity.

• What does “survival of the fittest” mean in Darwin’s theory?
  

a) Only the strongest organisms survive
b) Organisms with favorable variations reproduce more
c) All offspring survive in a population
d) Organisms adapt during their lifetime
Answer: b) Organisms with favorable variations reproduce more
Explanation: Favorable variations enable better survival and reproduction, passing traits to offspring. 

•  How does Neo-Darwinism improve upon Darwin’s original theory?
  

a) It includes acquired traits
b) It explains variations through genetics
c) It rejects natural selection
d) It ignores fossil evidence
Answer: b) It explains variations through genetics
Explanation: Neo-Darwinism integrates Mendel’s genetics, explaining variations via mutations and recombination.

For details 10th std Biology Ch 2 Paths of Evolution MCQs click here

  Kerala 10th std Biology Textbook Ch 2 Paths of Evolution MCQs.pdf (Size: 216.11 KB / Downloads: 0)