Science Group
Explore subjects and practice MCQs
10
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1,000
Total MCQs
Unit-1 The Science of Biology
Answer: The scientific method starts with careful observation of a problem or phenomenon.
Answer: A hypothesis is a tentative explanation that is tested through experimentation.
Answer: From the hypothesis, a scientist makes a prediction about what will happen in the experiment.
Answer: The hypothesis is tested by performing a controlled experiment.
Answer: A theory is a hypothesis supported by repeated experiments and observations.
Answer: A law states a body of observed facts that hold true under stated conditions.
Answer: The decimal point is moved five places to the right, so the exponent is -5.
Answer: The decimal is moved six places to the left to give 4.5 x 10^6.
Answer: 7000 is written as 7 x 10^3 because the decimal moves three places to the left.
Answer: Biophysics applies the laws of physics to study living organisms.
Answer: Biochemistry studies the chemical processes occurring in living organisms.
Answer: Biometry (biostatistics) uses mathematical tools to analyze biological data.
Answer: Tissues are groups of similar cells that perform a common function.
Answer: Atoms combine to form molecules at the molecular level of organization.
Answer: A population is a group of organisms of the same species living in a specific area.
Answer: A community includes all the populations of different species in a given area.
Answer: An ecosystem includes living organisms and the non-living factors of their environment.
Answer: The biosphere is the part of the Earth that supports life.
Answer: The biosphere is the largest and most complex level of biological organization.
Answer: Organs cooperate to form organ systems such as the digestive system.