Punjab 9th Class Biology Chapter 2 Solving a Biological Problem 9th Class Punjab

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Question 1 of 18

Biology

1. Experimentation is only a step of the scientific process, but it is a very import because it always _________.

Gives the biologist a correct result

Gives scientists a chance to work in the laboratory

Ensures that hypotheses can be confirmed with certainty

Allows rejection of some alterative hypotheses

Question 1 of 18

Question 2 of 18

2. Which one of these is NOT a characteristic of a hypothesis?

Must be consistent will all available data

Must be correct

Must be testable

Must make predictions

Question 2 of 18

Question 3 of 18

3. A species of mosquito; bites birds is called:

Plasmodium

Culex

Quinine

Cinchona

Question 3 of 18

Question 4 of 18

4. What would be the best experiment design for testing a hypothesis that bean plants require sodium?

Look for sodium in leaf tissues

Measure the amount of sodium in a few bean plant

Grow bean plants with and without sodium

Analyze root contents for sodium

Question 4 of 18

Question 5 of 18

5. The medicines that kills plasmodium and so cures malaria:

Culex

Quinine

Cinchona

Anopheles

Question 5 of 18

Question 6 of 18

6. The use of algorithms, computational and statistical techniques for the analysis of biological data.

Computational Biology

Bioinformatics

Biological method

Biological Statistics

Question 6 of 18

Question 7 of 18

7. A hypothesis must be testable to be scientifically valid. Being testable means that ______________.

The opposite of hypothesis is tested and proven wrong

Some observation could prove the hypothesis incorrect

Only a controlled experiment can indicate whether the hypothesis is correct or incorrect

The hypothesis is proven wrong

Question 7 of 18

Question 8 of 18

8. The logical consequence of the hypotheses:

Induction

Ratio

Law

Deduction

Question 8 of 18

Question 9 of 18

9. A common species of mosquito; bites mammals:

Anopheles

Cinchona

Culex

Plasmodium

Question 9 of 18

Question 10 of 18

10. A scientific theory has which of the following properties?

It agrees with available evidence

It cannot be rejected

It has been absolutely proven

It does not need to be altered in the light of new evidence

Question 10 of 18

Question 11 of 18

11. You are testing a hypothesis; “students learn more if a They drink tea before sitting for study”. Your 20 experimental students drink tea before study; you test their learning by giving questions. Your 20 students of the control group should have all experimental conditions identical to the experimental group EXCEPT that;

They should not sit for studying

They should take tea before as well as during study

They should not take tea before studying

They should take tea with more milk and sugar

Question 11 of 18

Question 12 of 18

12. The tentative statement that may prove to be the answer of a scientific problem:

Hypothesis

Deduction

Law

Theory

Question 12 of 18

Question 13 of 18

13. At which point is a biologist most likely to use reasoning?

During data organization

None of these

While taking observations

During hypothesis formulation

Question 13 of 18

Question 14 of 18

14. You are testing a hypothesis; “students learn more if they drink tea before sitting for study”. Your 20 experimental students drink tea before study; you test their learning by giving questions. Your 20 students of the control group should have all experimental conditions identical to the experimental group EXCEPT that;

They should not take tea before study

They should take tea before as well as during study

None of these

They should take tea with more milk and sugar

Question 14 of 18

Question 15 of 18

15. A gardener sees a large snake nearby. He knows that generally snakes sting, so the gardener ran away. The gardener did which of the following?

Used reasoning

Constructed a theory

Used observation

Tested a hypothesis

Question 15 of 18

Question 16 of 18

16. Unicellular organism that causes malaria in mammals and birds etc.

Culex

Cinchona

Plasmodium

Anopheles

Question 16 of 18

Question 17 of 18

17. Which one of the following is a correct sequence in biological method?

Observations, Hypothesis, Deduction, Experimentation

Law, Theory, Deduction, Observations

Hypothesis, Observations, Deduction, Experimentation

Observations, Hypothesis, Law, Theory

Question 17 of 18

Question 18 of 18

18. A tree, the bark of which was used for the treatment of fevers:

Cinchona

Quinine

Anopheles

Culex

Question 18 of 18

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