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Biology Questions

Practice 95 Biology questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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95
Total Questions
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12
Easy
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81
Medium
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2
Hard
Practice by Exam:Biology(37)General Awareness(30)General Science(15)General Knowledge and General Awareness(4)Science(3)General Knowledge(2)General Intelligence & Reasoning(1)General Intelligence and Reasoning(1)

About Biology — practice questions, PYQs & concepts

Biology is a frequently-tested topic on Biology, General Awareness, General Science. ExamTest.live currently lists 95 Biology questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Biology weight in competitive exams

Across our Biology question bank, the largest sources are Biology (37), General Awareness (30), General Science (15), General Knowledge and General Awareness (4) and Science (3). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 12 easy Biology questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Biology Questions(1–95 of 95)

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Q1easymcqGeneral AwarenessSSC Selection Post 2021 Matriculation Level2026
14% accuracy
Which of the following parasites are responsible for malaria in humans?
Q2mediummcqGeneral AwarenessSSC Exam2026
0% accuracy
Identify the INCORRECT pair of cell shape types and their examples.
Q3mediummcqGeneral AwarenessSSC Exam2026
0% accuracy
Which of the following is NOT correctly matched?
Q4easymcqGeneral StudiesCompetitive Exam2026
0% accuracy
Who suggested that "Everyone has a specific blood group"?
Q5mediummcqGeneral AwarenessCompetitive Exam2026
50% accuracy
______ is associated with the production and metabolism of fats and steroid hormones.
Q6mediummcqGeneral ScienceSSC GD2026
0% accuracy
Photosynthesis in plants converts light energy to ______ energy.
Q7mediummcqGeneral ScienceSSC GD2026
0% accuracy
An ecosystem consists of:
Q8mediummcqGeneral ScienceSSC GD2026
0% accuracy
Leguminous plants replenish the soil by the presence of ______.
Q9mediummcqGeneral ScienceSSC CGL2026
0% accuracy
AIDS is an abbreviation for:
Q10mediummcqGeneral ScienceSSC CGL2026
0% accuracy
Chromosomes found in the salivary glands of Drosophila are:
Q11mediummcqGeneral SciencePrepp2026
0% accuracy
image
Which of the following proteins is found in cereal grains (such as wheat, barley, and rye), as referenced in image_3a2500.png?
Q12mediummcqGeneral Knowledge and General AwarenessSSC CPO 20242026
0% accuracy
Which of the following is NOT included in the Indian Food Guide Pyramid for healthy eating?
Q13mediummcqGeneral AwarenessStaff Selection Commission2026
0% accuracy
The disease caused by deficiency of iodine is:
Q14mediummcqGeneral AwarenessStaff Selection Commission2026
0% accuracy
Which of the following is the correct formula for calculating Body Mass Index (BMI)?
Q15mediummcqGeneral AwarenessSSC Selection Post 2018 Higher Secondary Level2026
100% accuracy
हरे रंगरं के पौ धों द्वा रा प्रका श ऊर्जा को रा सा यनि क ऊर्जा में परि वर्ति त करने के लि ए उपयो ग की जा ने वा ली भौ ति क-रा सा यनि क प्रक्रि या को _________ के रूप में जा ना जा ता है।
Q16mediummcqGeneral AwarenessSSC Selection Post 2018 Higher Secondary Level2026
0% accuracy
नि म्नलि खि त में से कौ न जी वि त जी वों की को शि का ओं के भी तर जी वन-नि र्वा ह रा सा यनि क परि वर्तनों को संदर्भि त करता है?
Q17mediummcqGeneral AwarenessSSC Selection Post 2018 Higher Secondary Level2026
0% accuracy
एक स्थि र स्थिति बना ए रखने के लि ए आंतरि क वा ता वरण के वि नि यमन को कहते हैं:
Q18mediummcqGeneral AwarenessSSC Selection Post 2021 Question Paper (09-Feb-2022) (Shift-1)2026
0% accuracy
Crayfish and ticks are classified into _____, respectively.
Q19mediummcqGeneral AwarenessSSC Selection Post 2021 Question Paper (09-Feb-2022) (Shift-1)2026
0% accuracy
During the process of respiration in plants, which of the following is NOT released as a product?
Q20mediummcqGeneral KnowledgeCompetitive Exam2026
0% accuracy
Who are ethologists according to the terminology listed in image_66ceff.jpg?
Q21mediummcqGeneral AwarenessSSC Selection Post 2021 Matriculation Level2026
0% accuracy
Honey is composed of water and two main types of sugars: __________ and glucose.
Q22mediummcqGeneral AwarenessStaff Selection Commission2026
Which of the following is a unicellular organism?
Q23mediummcqGeneral AwarenessUP Police Constable2026
______ propounded the inheritance of acquired character.
Q24mediummcqGeneral AwarenessIndian Competitive Exams2026
Which glands help in digestion in the stomach?
Q25mediummcqGeneral AwarenessIndian Competitive Exams2026
Rickets is caused by deficiency of:
Q26mediummcqGeneral ScienceGeneral Knowledge Competitive Exams2026
Which of the following cell organelles is involved in apoptosis?
Q27mediummcqGeneral ScienceGeneral Knowledge Competitive Exams2026
Which of the following groups represents essential amino acids?
Q28mediummcqGeneral AwarenessSSC Combined Graduate Level Exam2026
Which of the following items has a high fibre content?
Q29mediummcqGeneral Knowledge and General AwarenessCompetitive Exam2026
Which protein is found in grains?
Q30mediummcqGeneral Knowledge and General AwarenessPrepp2026
What are the thin filamentous extensions that the motile bacterial cells have from their cell wall called?
Q31mediummcqGeneral AwarenessIndian Competitive Exam2026
The following are three processes of reproduction in plants:(a) Vegetative,(b) Sexual,(c) AsexualWhich of them is adopted by algae?
Q32mediummcqGeneral ScienceCompetitive Exams2026
Which type of protein is found in milk?
Q33mediummcqGeneral KnowledgeCompetitive Exams2026
Which of the following is a nocturnal animal?
Q34mediummcqGeneral AwarenessCompetitive Exams2026
Which of the following statements is NOT true about angiosperms?
Q35mediummcqGeneral ScienceStaff Selection Commission2026
Life on earth began in the oceans almost________ years ago.
Q36mediummcqGeneral ScienceStaff Selection Commission2026
Which of the following is NOT an amphibian?
Q37mediummcqGeneral ScienceStaff Selection Commission2026
Which of the following diseases is caused by bacteria?
Q38mediummcqGeneral ScienceStaff Selection Commission2026
Which of the following statements about ‘Biological Magnification’ is FALSE?
Q39mediummcqSciencePractice Test2026
Which of the following is not a mode of asexual reproduction?
Q40mediummcqGeneral AwarenessSSC CGL2026
K-selected species are characterised by:
Q41mediummcqGeneral AwarenessSSC CGL2026
Which of the following classes has the largest number of animals?
Q42mediummcqGeneral AwarenessPractice Test2026
Elephantiasis is caused by:
Q43mediummcqGeneral Knowledge and General AwarenessSSC CPO 20242026
Which of the following options is correctly matched?
Q44mediummcqScienceCompetitive Exam2026
What is the main function of chlorophyll in plants?
Q45mediummcqEnvironmental ScienceGeneral Knowledge Studies2026
Substances said to be biodegradable:
Q46mediummcqGeneral AwarenessSSC CGL2026
Identify a mobile source of food.
Q47easymcqGeneral ScienceStaff Selection Commission2026
A plant cell wall is mainly composed of:
Q48mediummcqGeneral ScienceStaff Selection Commission2026
What is the function of cytochrome P450?
Q49mediummcqGeneral AwarenessStaff Selection Commission2026
Which of the following statements is correct about nutrients?
Q50mediummcqGeneral AwarenessStaff Selection Commission2026
The 'Blood Sugar' disease is also known as:
Q51hardmcqGeneral AwarenessSSC Selection Post 2021 Matriculation Level2026
The inability to effectively use voluntary motor abilities in all aspects of life, from play to structured skilled tasks, is called _______.
Q52mediummcqSciencePrepp2026
Which Greek term was first used by Ernst Haeckel in 1866 to refer to ‘the relation of animals to both the organic as well as the inorganic environment’?
Q53mediummcqGeneral AwarenessUP Police Constable2026
The vascular tissue that transports water and nutrients in plants is called the ______.
Q54mediummcqGeneral AwarenessUP Police Constable2026
In plants/trees, after fertilisation the ovary matures to form the:
Q55mediummcqGeneral AwarenessUP Police Constable2026
Out of the following options, choose the name of a spore-producing plant:
Q56easymcqGeneral AwarenessSSC Selection Post 2021 Matriculation Level2026
Cassowary, kiwi and rhea are examples of which of the following?
Q57easymcqGeneral Intelligence and ReasoningAdda2472026
Complete the analogy:
Q58mediummcqGeneral Intelligence & ReasoningCompetitive Exam2026
How are dolphins and whales similar?
Q59mediummcqBiologyBiology
Which one of the following statement is correct?
Q60mediummcqBiologyBiology
Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism?
Q61mediummcqBiologyBiology
The finches of Galapagos islands provide an evidence in favour of:
Q62mediummcqBiologyBiology
What is true about Nereis, Scorpion, Cockroach and Silver fish?
Q63mediummcqBiologyBiology
Which of the following pairs are correctly matched?
image
Q64mediummcqBiologyBiology
Which one of the following is a matching pair of a body feature and the animal possessing it?
Q65mediummcqBiologyBiology
Two plants can be conclusively said to belong to the same species if they:
Q66mediummcqBiologyBiology
Two genes R and Y are located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are hybridized, then segregation will show:
Q67mediummcqBiologyBiology
About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and:
Q68mediummcqBiologyBiology
Which one of the following pairs is mismatched?
Q69mediummcqBiologyBiology
Differentiation of organs and tissues in a developing organism is associated with:
Q70mediummcqBiologyBiology
Industrial melanism as observed in peppered moth proves that:
Q71mediummcqBiologyBiology
The concept of chemical evolution is based on:
Q72mediummcqBiologyBiology
Which part of ovary in mammals acts as an endocrine gland after ovulation?
Q73mediummcqBiologyBiology
Among the human ancestors the brain size was more than in:
Q74mediummcqBiologyBiology
Which one of the following is an example of negative feedback loop in humans?
Q75mediummcqBiologyBiology
One of the important consequences of geographical isolation is:
Q76mediummcqBiologyBiology
The population of an insect species shows an explosive increase in numbers during rainy season followed by its disappearance at the end of the season. What does this show?
Q77easymcqBiologyBiology
Which one of the following is linked to the discovery of Bordeaux mixture?
Q78mediummcqBiologyBiology
In human body, which one of the following is anatomically correct?
Q79easymcqBiologyBiology
Which one of the following is correctly matched?
Q80mediummcqBiologyBiology
Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?
Q81easymcqBiologyBiology
Which of the following plant species you would select for the production of bioethanol?
Q82mediummcqBiologyBiology
Which two measures can successfully control bacterial blight in chick-pea?(a) Spray with Bordeaux mixture.(b) Control the insect vector.(c) Use only disease-free seeds.(d) Use varieties resistant to the disease.
Q83mediummcqBiologyBiology
Which one of the following proved effective for biological control of nematodal disease in plants?
Q84easymcqBiologyBiology
Modern detergents contain enzyme preparations of:
Q85hardmcqBiologyBiology
Which two of the following statements about biomedical technologies are correct?(a) During open heart surgery, blood is circulated in the heart-lung machine.(b) Blockage in coronary arteries is removed by angiography.(c) shows detailed internal structure as seen in a section of the body.(d) X-ray provides detailed images of soft organs like the prostate gland.
Q86easymcqBiologyBiology
Which of the following is being tried in India as a biofuel substitute for fossil fuels?
Q87mediummcqBiologyBiology
The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for:
Q88easymcqBiologyBiology
Bacterial leaf blight of rice is caused by a species of:
Q89easymcqBiologyBiology
Nitrogen fixation in root nodules of Alnus is brought about by:
Q90mediummcqBiologyBiology
When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed:
Q91mediummcqBiologyBiology
Adaptive radiation refers to:
Q92mediummcqBiologyBiology
Which one of the following pairs is wrongly matched?
Q93mediummcqBiologyBiology
The biological organisation starts with:
Q94mediummcqBiologyBiology
Which one of the following pairs of structures distinguishes a nerve cell from other types of cell?
Q95mediummcqBiologyBiology
What is common to whale, seal and shark?

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How many Biology questions are on ExamTest.live?▼
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Biology questions are commonly asked in Biology, General Awareness, General Science, General Knowledge and General Awareness, Science. You can filter by exam using the links above.
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Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.