Import Question JSON

Current Question (ID: 15887)

Question:

Which one of the following options gives one correct example each of convergent evolution and divergent evolution?

Options:

1. Eyes of Octopus and mammals, Bones of forelimbs of vertebrates
2. Thorns of Bougainvillea and tendrils of Cucurbita, Wings of butterflies and birds
3. Bones of forelimbs of vertebrates, Wings of butterfly and birds
4. Thorns of Bougainvillea and tendrils of Cucurbita, Eyes of Octopus and mammals

Solution:

Convergent evolution involves the independent development of similar structures in organisms that are not directly related. It is represented by analogous organs, e.g. eyes of Octopus and mammals, wings of insects and birds. In divergent evolution, same basic organ becomes adapted by specialisation to perform different functions. It is represented by homologous organs, e.g. forelimbs of vertebrates (like seal's flipper, bat's wing, cat's paw horse's front leg and human hand), thorns of Bougainvillea and tendrils of Cucurbita.

Import JSON File

Upload a JSON file containing LaTeX/MathJax formatted question, options, and solution.

Expected JSON Format:

{
  "question": "The mass of carbon present in 0.5 mole of $\\mathrm{K}_4[\\mathrm{Fe(CN)}_6]$ is:",
  "options": [
    {
      "id": 1,
      "text": "1.8 g"
    },
    {
      "id": 2,
      "text": "18 g"
    },
    {
      "id": 3,
      "text": "3.6 g"
    },
    {
      "id": 4,
      "text": "36 g"
    }
  ],
  "solution": "\\begin{align}\n&\\text{Hint: Mole concept}\\\\\n&1 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\text{ moles of carbon atom}\\\\\n&0.5 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\times 0.5 \\text{ mol} = 3 \\text{ mol}\\\\\n&1 \\text{ mol of carbon} = 12 \\text{ g}\\\\\n&3 \\text{ mol carbon} = 12 \\times 3 = 36 \\text{ g}\\\\\n&\\text{Hence, 36 g mass of carbon present in 0.5 mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6].\n\\end{align}",
  "correct_answer": 4
}