This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Biological Sciences – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biological Sciences Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. All vertebrates have this structure which indicates that they are evolved from a distant same ancestor A) A chambered heart. B) Kidneys to clean the blood. C) Lungs for breathing air. D) Pharyngeal Pouches. Show Answer Correct Answer: D) Pharyngeal Pouches. 2. A body part that is not used or not working by a modern organism but which was needed by its ancestors is called a A) Homologous structure. B) Analogous Structure. C) Vestigial Structure. D) Pharyngeal Pouch. Show Answer Correct Answer: C) Vestigial Structure. 3. Which kind of a structure is it? A bat's wing and a butterfly's wing? A) Vestigial. B) Homologous. C) Analogous. D) Pharyngeal. Show Answer Correct Answer: C) Analogous. 4. What is an circadian rhythm? A) Biological rhythm which lasts around 24 hrs. B) Biological rhythm which is under 24 hrs. C) Biological rhythm which lasts longer than 24 hrs. D) None of above. Show Answer Correct Answer: A) Biological rhythm which lasts around 24 hrs. 5. Evolved from the same ancestor, but have different functions A) Homologous structures. B) Analogous structures. C) Vestigial structures. D) All of the above. Show Answer Correct Answer: A) Homologous structures. 6. Silverfish and termite are. A) Mollusk. B) Insects. C) Birds. D) Fish. Show Answer Correct Answer: B) Insects. 7. Which of the following nutrients is important for body, cell, and muscle growth and repair? A) Fats. B) Vitamins. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: C) Proteins. 8. The solar radiation shorter than 390 millimicron is the. A) Visible light. B) Infra-red light. C) Ultraviolet light. D) Ultrared light. Show Answer Correct Answer: C) Ultraviolet light. 9. Fossil evidence indicate that the earliest terrestrial vertebrates ware primitive. A) Amphibians. B) Mammals. C) Aves. D) Reptiles. Show Answer Correct Answer: A) Amphibians. 10. Which kind of a structure is it? A bird's wing and a human forearm A) Pharygeal Pouch. B) Vestigial. C) Analogous. D) Homologous. Show Answer Correct Answer: D) Homologous. 11. Name the post-mortem examination. A) Biopsy. B) Metaphase. C) Autopsy. D) Osmolysis. Show Answer Correct Answer: C) Autopsy. 12. The kind of blood circular system which does not permit whole blood to come in direct contact with cell is known as. A) Dosed blood circular system. B) Empty blood circular system. C) Full blood circular system. D) Open blood circular system. Show Answer Correct Answer: A) Dosed blood circular system. 13. Felis domesticus is the botanical name of. A) Rat. B) Lion. C) Cat. D) Monkey. Show Answer Correct Answer: C) Cat. 14. In multicellular animals, much of digestion occurs in digestive tract but. A) Inside the nucleus. B) Inside the cells. C) Outside the cells. D) Within the cells. Show Answer Correct Answer: C) Outside the cells. 15. What level of biological organization is the largest (includes all other levels)? A) Organ. B) Organ systems. C) Organism. D) Cells. Show Answer Correct Answer: C) Organism. 16. Which vitamin helps in healing of wounds and mending fractures? A) Vitamin C. B) Vitamin B. C) Vitamin B2. D) Vitamin K. Show Answer Correct Answer: A) Vitamin C. 17. Regions of the planet with similar types of life and climates are called A) Systems. B) Biomes. C) Spheres. D) Kingdoms. Show Answer Correct Answer: B) Biomes. 18. Breaking down but not removal of rocks. A) Exfoliation. B) Oxidation. C) Physical Weathering. D) Weathering. Show Answer Correct Answer: D) Weathering. 19. The packages of the enzymes surrounded by membrane and appear as granules under light microscope are called. A) Lysosomes. B) Ribosomes. C) Golgi apparatus. D) Endoplasmic reticulum. Show Answer Correct Answer: A) Lysosomes. 20. Of the dry protoplasm, inorganic matter is . A) 50%. B) 10%. C) 25%. D) 90%. Show Answer Correct Answer: B) 10%. 21. About how many hormones are steroids, some are proteins and others have different nature? A) 60%. B) 70%. C) 40%. D) 50%. Show Answer Correct Answer: D) 50%. 22. First antibiotic, penicillin was discovered by Alexander Fleming in. A) 1928. B) 1932. C) 1934. D) 1924. Show Answer Correct Answer: A) 1928. 23. What is sediment? A) The process of rocks being broken down and carried away. B) Bits of rock, sand, and silt caused by the weathering of rocks. C) The top layer of the soil. D) Decaying plant or animal material. Show Answer Correct Answer: B) Bits of rock, sand, and silt caused by the weathering of rocks. 24. The sleep wake cycle is an example of? A) Exogenous Zeitgeber. B) Ultradian Rhythm. C) Infradian Rhythm. D) Circadian Rhythm. Show Answer Correct Answer: D) Circadian Rhythm. 25. Which of the following can we find prokaryotic cell? A) Bacteria. B) Dog. C) Flower. D) Student. Show Answer Correct Answer: A) Bacteria. 26. Which of the following is an example of tissue? A) Epithelial. B) Eukaryote. C) Heart. D) Digestive system. Show Answer Correct Answer: A) Epithelial. 27. Waxes, oils and fats are examples of A) Lipids. B) Nucleic Acids. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: A) Lipids. 28. Fossils that are created from the impression of an organism are called A) Trace. B) Behavioral. C) Cast. D) Mold. Show Answer Correct Answer: D) Mold. 29. Reaction to stimulus is called. A) Disturbance. B) Response. C) Frequency. D) Impulse. Show Answer Correct Answer: B) Response. 30. Parts of Stone Mountain have worn down over time due to people walking up the mountain. A) Physical. B) Chemical. C) Biological. D) None of above. Show Answer Correct Answer: C) Biological. 31. What kinds of rocks hold the most fossils? A) Sedimentary. B) Amber. C) Aggregate. D) Igneous. Show Answer Correct Answer: A) Sedimentary. 32. The elements, ....., are found in all of the organic compounds. A) Carbon, Hydrogen and Oxygen. B) Carbon, Hydrogen, Oxygen, and Nitrogen. C) Carbon and Oxygen. D) Carbon, Hydrogen, and Nitrogen. Show Answer Correct Answer: A) Carbon, Hydrogen and Oxygen. 33. What does POLY-mean? A) Many. B) A name for a parrot. C) One. D) Two. Show Answer Correct Answer: A) Many. 34. Proteins are made of monomers called ..... A) Nucleotides. B) Monosaccharides. C) Amino Acids. D) Glycerol and fatty acids. Show Answer Correct Answer: C) Amino Acids. 35. About ..... different species of animals have been discovered A) 1 million. B) 2 million. C) 0.50 million. D) 1.50 million. Show Answer Correct Answer: A) 1 million. 36. Which is determined by the presence or absence of certain antigens on red blood cells and certain antibodies in the serum? A) Co-enzyme. B) Blood group. C) Immune system. D) AH factor. Show Answer Correct Answer: B) Blood group. 37. What is the name of the tiny air sacs in your lungs? A) Ravioli. B) Alveoli. C) Bronchioles. D) Bronchus. Show Answer Correct Answer: B) Alveoli. 38. The white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example of ..... A) Species. B) Variation. C) Environmental Change. D) Adaptation. Show Answer Correct Answer: D) Adaptation. 39. A ..... may be defined as the fundamental unit of heredity, fromed as a sequence of bases in a DNA chain. A) Gene. B) Embryo. C) Cell division. D) Cilia. Show Answer Correct Answer: A) Gene. 40. Which vitamin is important for bone development? A) Vitamin D. B) Vitamin B. C) Vitamin E. D) Vitamin A. Show Answer Correct Answer: A) Vitamin D. 41. ..... is a carbohydrate that forms plant cell walls, and ..... makes hard shells. A) Amino acid, phospholipid. B) Chitin, cellulose. C) Cellulose, chitin. D) Phospholipid, chitin. Show Answer Correct Answer: C) Cellulose, chitin. 42. The combination of the earth orbiting the sun and tilt of the earths axis gives A) Compound rhythm. B) Annual rhythm. C) Tidal rhythm. D) Semi lunar rhythm. Show Answer Correct Answer: B) Annual rhythm. 43. The estimated number of genes in a human cell is 100, 000 and the number of nucleotide pairs in human DNA is. A) 2 billion. B) 3 billion. C) 1 billion. D) 4 billion. Show Answer Correct Answer: B) 3 billion. 44. Consists of functionally related organs. A) ORGAN SYSTEM. B) CELL. C) TISSUE. D) ORGAN. Show Answer Correct Answer: A) ORGAN SYSTEM. 45. The biosphere includes plants and animals that live A) On land. B) On land and in the water. C) On land, in water, and in the air. D) In water. Show Answer Correct Answer: C) On land, in water, and in the air. 46. The substances on which the enzymes act are called. A) Substrates. B) Cholesterol. C) Xylins. D) Nicotines. Show Answer Correct Answer: A) Substrates. 47. Plants use energy to synthesize sugar and starch through the process of . A) Reproduction. B) Photosynthesis. C) Metabolism. D) Growth. Show Answer Correct Answer: B) Photosynthesis. 48. A process in which micro-organisms in the absence of oxygen breakdown carbohydrates into various organic compounds is called A) Fermentation. B) Photosynthesis. C) Guttation. D) Respiration. Show Answer Correct Answer: D) Respiration. 49. What phyla do all vertebrates belong in? A) Mammals. B) Echinoderms. C) Porifera. D) Chordates. Show Answer Correct Answer: D) Chordates. 50. Penguin the flight less bird, is found in . A) Australia. B) Antarctica. C) New Zealand. D) South America. Show Answer Correct Answer: B) Antarctica. 51. A variety of organisms which always produce offspring indentical to the parent is called a. A) True breeding variety. B) False breeding variety. C) Special breeding variety. D) Constant breeding variety. Show Answer Correct Answer: A) True breeding variety. 52. Oxygen combines with digested food molecules in body cells to release the energy stored in them. This process is called ..... . A) Respiration. B) Breathing. C) Digestion. D) None of above. Show Answer Correct Answer: A) Respiration. 53. Which of the following genotypes is homozygous recessive? A) RR. B) Rr. C) Rr. D) None of the Above. Show Answer Correct Answer: B) Rr. 54. Cell part that is NOT present in animal cell and present in plant cell? A) Ribosomes. B) Vacuole. C) Cell wall. D) Endoplasmic Reticulum. Show Answer Correct Answer: C) Cell wall. 55. Muscle tissue, skin tissue, and skeletal tissue. A) ORGAN. B) CELL. C) ORGAN SYSTEM. D) TISSUE. Show Answer Correct Answer: D) TISSUE. 56. What is the term used to describe choosing specific parents to get desirable characteristics in offspring? " A) Tissue culture. B) AI. C) Pollination. D) Selective breeding. Show Answer Correct Answer: D) Selective breeding. 57. Proteins are considered to be the most common large molecules in. A) Non-living things. B) Human bodies. C) Plants. D) Living organisms. Show Answer Correct Answer: D) Living organisms. 58. A body part in one organism that is similar in function with the body part of another is called a A) Vestigial structure. B) Pharyngial pouch. C) Analagous structure. D) Homologous structure. Show Answer Correct Answer: D) Homologous structure. 59. A special type of blood protein known as fibrinogen helps in. A) Blood supply. B) Blood transport. C) Blood infusion. D) Blood clotting. Show Answer Correct Answer: D) Blood clotting. 60. Most of the changes in materials are physical or. A) Permanent. B) Compound. C) Chemical. D) Hard. Show Answer Correct Answer: C) Chemical. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesBiological Sciences Quiz 1Biological Sciences Quiz 3Biological Sciences Quiz 4Biology QuizBotany QuizCell Biology QuizCirculatory System QuizEndocrine Glands Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books