Free Biodiversity and Variety of Life MCQs with Answers
3,130 Biodiversity and Variety of Life MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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- A. Benign tumours show the property of metastasis
- B. Heroin accelerates body functions
- C. Malignant tumours may exhibit metastasis
- D. Patients who have undergone surgery are given cannabinoids to relieve pain
Explanation: Tumors are of two types: benign and malignant. Malign or malignant tumors exhibit metastasis.
Correct answer: Malignant tumours may exhibit metastasis- A. Common Cold, AIDS
- B. Dysentery, Common Cold
- C. Typhoid, Tuberculosis
- D. Ringworm, AIDS
Explanation: The common cold is a viral disease. It is caused by Rhinoviruses. It causes fever and pain all over the body and affects the nose, throat…
Correct answer: Common Cold, AIDS- A. Morphine leads to delusions and disturbed emotions.
- B. Barbiturates cause relaxation and temporary euphoria.
- C. Hashish causes after-thought perceptions and hallucinations.
- D. Opium stimulates the nervous system and causes hallucinations.
Explanation: Hashish or charas is a pure resin obtained from female flowers and leaves of selected varieties of Cannabis sativa.
Correct answer: Hashish causes after-thought perceptions and hallucinations.- A. Eating fruits preserved in tin containers
- B. Inhalation of seasonal pollen
- C. low temperature
- D. Hot and humid environment.
Explanation: Increased asthmatic attacks in certain seasons are related to inhalation of seasonal pollen.
Correct answer: Inhalation of seasonal pollen- A. Serum Globulins
- B. Fibrinogen in the plasma
- C. Haemocytes
- D. Serum Albumins.
Explanation: Serum globulin are globulins occurring in blood serum and containing most of the antibodies of the blood.
Correct answer: Serum Globulins- A. Certain types of bacteria
- B. All viruses
- C. Most Virus Infected Cells
- D. Certain Fungi
Explanation: Lysozyme is an antibacterial enzyme with natural antibiotic properties.
Correct answer: Certain types of bacteria- A. Virus
- B. Bacterium
- C. Prion
- D. Worm
Explanation: Mad cow disease is the common term for Bovine spongiform encephalopathy (BSE), a progressive neurological disorder of cattle.
Correct answer: Prion- A. An obligate aerobe
- B. A facultative anaerobe
- C. An obligate anaerobe
Explanation: Clostridium is a genus of gram-positive bacteria. They are obligate anaerobes capable of producing endospores.Individual cells are…
Correct answer: An obligate anaerobe- A. Helper T-Lymphocytes
- B. B-lymphocytes
- C. Leucocytes
- D. None of these
Explanation: AIDS (acquired immunodeficiency syndrome) a syndrome, is caused by the retrovirus HIV (human immunodeficiency virus).
Correct answer: Helper T-Lymphocytes- A. Addictive Disorders
- B. Schizophrenia
- C. Borderline Personality Disorder (BPD)
- D. Mood Disorders
Explanation: Borderline personality disorder (BPD) is a serious mental illness characterized by pervasive instability in moods, interpersonal…
Correct answer: Borderline Personality Disorder (BPD)- A. Glycoproteins
- B. Lipoproteins
- C. Steroids
- D. Prostaglandins
Explanation: Antibodies are members of a class of proteins known as immunoglobulins.
Correct answer: Glycoproteins- A. Morphine
- B. Valium
- C. Amphetamines
- D. Hashish
Explanation: Valium is a benzodiazepine (sedative) that gives a feeling of relaxation, calmness, or drowsiness in the body.
Correct answer: Valium- A. A reduction in haemoglobin content of blood
- B. A reduction in stem cell production
- C. Loss of antibody mediated immunity
- D. Loss of cell mediated immunity.
Explanation: The thymus is the major gland of our immune system. It is responsible for numerous immune system functions, including the production of…
Correct answer: Loss of cell mediated immunity.- A. Glossina Palpalis; Sleeping Sickness
- B. Culex Pipiens; Filariasis
- C. Aedes Aegypti; Dengue Fever
- D. Anopheles Culifacies; Leishmaniasis
Explanation: All the options given are diseases with their associated vectors that transmit the respective diseases.
Correct answer: Anopheles Culifacies; Leishmaniasis- A. Malignant tumours of the connective tissue
- B. Malignant tumours of the skin or mucous membrane
- C. Malignant tumours of the colon
- D. Benign tumours of the connective tissue.
Explanation: Carcinoma is a type of cancer that arises in the epithelium, which is the tissue that lines the skin and internal organs of the body.
Correct answer: Malignant tumours of the skin or mucous membrane- A. Haemophilia-B
- B. Hepatitis-B
- C. Down's syndrome
- D. Sleeping sickness.
Explanation: Haemophilia B, a type of haemophilia, is also known as Christmas disease.
Correct answer: Haemophilia-B- A. Typhoid
- B. Polio
- C. T.B.
- D. Tetanus
Explanation: Typhoid is caused by Salmonella typhi. The organisms responsible for the disease are present in the stool and may also be found in urine.
Correct answer: Typhoid- A. Hepatitis-B
- B. AIDS
- C. Cough and cold
- D. Malaria
Explanation: Hepatitis-B (serum hepatitis) can occur at any age, and its mode of transmission is through contact with infected blood.
Correct answer: Hepatitis-B- A. Mycoplasma
- B. Bacteria
- C. Viruses
- D. Fungi
Explanation: Interferons are proteins that increase a cell's resistance to viral attacks by unmasking genes that synthesize antiviral proteins.
Correct answer: Viruses- A. Coal mining
- B. Calcium fluoride
- C. Cement factory
- D. Bauxite mining
Explanation: Lung cancer is a disease where lung tissue grows out of control. This may lead to metastasis, invasion of adjacent tissue, and…
Correct answer: Coal mining