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Class 9 Biology Chapter 1: The Science of Biology MCQs With Explanations

Practice Class 9 Biology Chapter 1: The Science of Biology MCQs with explanations for Pakistani board exams. Includes solved objective questions, answer checking, chapter revision guidance and next chapter suggestions.

MCQs / Class 9 / Biology / Chapter 1: The Science of Biology
16 MCQs

Chapter 1: The Science of Biology Objective Preparation

Use this page for direct chapter practice, answer checking and explanation review. It is available through the clean URL shown in the browser, so students can bookmark and share this exact chapter.

16Total MCQs
16With explanations
5Topics represented

Topics found: The Science of Biology, Quran and Biology, Scientific Method, Branches of Biology, Biotechnology

The Science of Biology MCQs With Explanations

Q1. According to the Quran, what is the origin of every living thing?
Surah Al-Anbiya (21:30) explicitly states that all living things were created from water.
Q2. What field involves using mathematical models and computer simulations to analyze biological data?
Computational Biology specifically focuses on the development and application of data-analytical and theoretical methods and mathematical modeling to study biological systems.
Q3. Which mosquito is identified as the transmitter of dengue fever?
Aedes aegypti and Aedes albopictus are the primary mosquito vectors responsible for transmitting the dengue virus.
Q4. Which of the following is an example of a biological law?
Mendel's laws of inheritance are widely recognized as biological laws because they describe consistent, predictable patterns of genetic transmission.
Q5. In the scientific method, what does a deduction typically follow?
In the hypothetico-deductive method, a researcher develops a testable hypothesis and then uses deduction to predict the specific results that should occur if the hypothesis is true.
Q6. What is the primary role of a control group in an experiment?
A control group is essential for ensuring that the observed effects in an experiment are due to the independent variable rather than external factors.
Q7. Which of the following is an example of a quantitative observation?
Quantitative observations involve measurable numerical data, such as counting objects, whereas the other options describe qualitative characteristics.
Q8. Approximately how many cells does the human body contain?
Recent scientific estimates suggest the average adult human body contains approximately 30 to 37 trillion cells.
Q9. Which of the following is considered the oldest known fossil?
Stromatolites, which are formed by cyanobacteria, are the oldest known fossils, dating back approximately 3.5 billion years.
Q10. What is the approximate water content range found in different living organisms?
Water is the primary component of living cells, typically making up between 60% and 90% of their total mass.
Q11. Which Sura describes classification?
Sura Al-Rehman (55) describes the classification and diversity of creation, including plants, animals, and humans, aligning with biological taxonomy.
Q12. The tentative explanation of observation is called:
A hypothesis is a testable, tentative explanation proposed to account for observed phenomena.
Q13. Heart pumps blood, stomach digest food, and kidneys excrete wastes. This statement comes from:
Physiology studies the functions of organs and systems, such as the heart pumping blood or kidneys excreting wastes.
Q14. Insulin made through bacteria is an example of the technique of:
Producing human insulin using genetically modified bacteria is a classic application of biotechnology.
Q15. The study of the process of heredity and variation in living organisms is known as:
Genetics is the scientific study of heredity and variation in traits passed from parents to offspring.
Q16. Which branch of biology focuses on the study of the structure and function of cells?
Cytology is the branch of biology dedicated to studying cell structure and function, making it the precise term for this definition.

After Chapter 1: The Science of Biology, Practice Next Chapters

Once you finish these MCQs, continue with the next available chapters from Biology so your revision stays chapter-wise and complete.

Chapter 1: The Science of Biology Revision Guide

Complete the MCQs first, then review every incorrect answer against the textbook heading where that concept appears. For biology and other science subjects, pay attention to terminology, diagrams, sequence of processes, examples and differences between similar structures or functions.

This chapter page keeps the exact class, subject, chapter, question count, answer checking, explanations and follow-up chapters together, so students can revise from one focused URL instead of searching through the full book again.

Class 9 Biology MCQ Preparation: The Science of Biology

This page supports Matric Part 1 practice in Biology. At this stage, the main purpose is building the definitions, symbols, rules and study habits needed for later matric work. The questions available here should be used with the current textbook and the instructions issued by the learner's school or examination board.

What Biology MCQs can test

In Biology, objective questions commonly draw on biological terminology, structures, functions, process sequences, classifications, examples, comparisons and labelled diagrams. A useful answer is based on the exact wording and concept, not simply on recognising a familiar option. For this subject, learners should link each structure with its function and arrange multi-stage processes in the correct biological sequence.

The Science of Biology: focused MCQ revision

This chapter should be reviewed through its main definitions, examples, diagrams, comparisons and links with earlier Biology concepts.

Write a one-sentence reason for each corrected answer and note the textbook heading where the concept is explained.

Common mistakes for Class 9 learners

In this subject, frequent errors include interchanging similar terms, skipping a process step, assigning a function to the wrong structure or relying on a diagram without reading its labels. Separate new terms that look similar and connect every formula, rule or definition with at least one textbook example. When the page marks an answer as incorrect, the next step should be to identify the mistaken idea and verify it, rather than memorising the displayed answer letter.

A practical revision routine

Read a small textbook section, answer a focused set of MCQs and correct the underlying idea before starting the next section. Before attempting the MCQs, review key terms, process stages, structure-function relationships, classifications, examples, differences and diagram labels. Complete a manageable set without notes, check the result, and divide errors into missing knowledge, misunderstood concepts and careless reading. Revise the appropriate section before repeating the chapter.

How to review The Science of Biology after the quiz

List the questions you missed from The Science of Biology and write the textbook heading connected with each one. Explain the correct idea in your own words, then return later and answer a fresh set. This gives the chapter page a clear purpose: finding specific weaknesses in Biology rather than only collecting a score.

Accuracy and responsible use

Explanations are provided where they exist in the question bank, but educational databases can contain incomplete or mistaken material. Confirm disputed answers with an authoritative textbook or teacher. Ahmad Learning Hub provides a practice resource and does not claim that a question will appear in an examination or that every available item represents an official board question.