Solved MCQs of Biology Class 9
The hypotheses, which are often tested and never rejected become
Laws
Principles
Theories
Results
Which mosquito spread malaria in birds.
Anopheles
Culex
Anopheles & Culex
None of these
In biological experiments, testing of hypothesis is based upon:
Observation
Hypothesis
Data
Law
____________ is believed to have died of malaria.
Aristotle
Alexander
Laveran
Genghis khan
“Plasmodium is the cause of malaria ” is.
Hypothesis
Deduction
Experiment
Law
Data are of ____________ types.
1
2
3
4
Bark of quina – quina was imported form:
Europe
America
Sapin
India
Logical consequences of hypothesis is,
Experiment
Deduction
Observations
Theory
Scientists noticed that persons living near marshy areas were most likely suffered from malaria. They will considered this fact as
Problem
Hypothesis
Observation
Experiment
At which point, is a biologist most likely to use reasoning?
While talking observations
During hypothesis formulation
During data organization
None of these
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