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Class 9 Biology · Chapter 1 · Test 5

Theory, Law and Malaria

24 MCQs on Theory, Scientific Law, Malaria, Plasmodium, Laveran, A.F.A. King, and Ronald Ross

MCQs

24 questions · 20 min · 24 marks

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Sample questions

The first 5 of 24. Try each one, then tap to see the answer.

  1. Question 1

    What does a hypothesis become after being repeatedly supported by evidence?

    • ATheory
    • BObservation
    • CDeduction
    • DExperiment
    Show answer

    Answer: A

    A hypothesis supported repeatedly by evidence can develop into a scientific theory.

  2. Question 2

    What is required for a scientific theory to gain strong acceptance?

    • AExtensive evidence and repeated support
    • BA single observation
    • CPersonal opinion
    • DOne unsuccessful experiment
    Show answer

    Answer: A

    Scientific theories are supported by extensive evidence and repeated research.

  3. Question 3

    Which biological concept is mentioned as an example of a theory?

    • AEvolution
    • BPhotosynthesis
    • CDigestion
    • DRespiration
    Show answer

    Answer: A

    Evolution is given as an example of a scientific theory.

  4. Question 4

    What is a scientific law?

    • AA uniform and constant fact of nature
    • BA tentative explanation
    • CA personal opinion
    • DA research question
    Show answer

    Answer: A

    A scientific law describes a uniform and constant fact of nature.

  5. Question 5

    Which of the following is mentioned as a biological law?

    • AMendel's laws
    • BLaw of gravity only
    • COhm's law
    • DNewton's law
    Show answer

    Answer: A

    Mendel's laws are given as examples of biological laws.

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