All Free Analytical and Logical Reasoning MCQs with Answers
Every Analytical and Logical Reasoning question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
2,989 questions · page 113 of 150
- A. White blood cells burst faster due to active immunity.
- B. Red blood cells lack nuclei and organelles for osmotic regulation.
- C. Red blood cells are more resistant to osmotic pressure.
- D. White blood cells have a weaker membrane.
Explanation: The correct answer is that red blood cells lack nuclei and organelles for osmotic regulation.
Correct answer: Red blood cells lack nuclei and organelles for osmotic regulation.- A. Oxygen is critical for proper embryonic development.
- B. High oxygen prevents all deformities.
- C. Embryonic development is unaffected by oxygen.
- D. 5% oxygen accelerates cell division.
Explanation: The correct answer is that oxygen is critical for proper embryonic development.
Correct answer: Oxygen is critical for proper embryonic development.- A. Acid rain can disrupt amphibian homeostasis.
- B. Acid rain increases amphibian reproduction.
- C. Skin in frogs resists any pH change.
- D. Acidic water improves survival rates.
Explanation: The correct answer is that acid rain can disrupt amphibian homeostasis.
Correct answer: Acid rain can disrupt amphibian homeostasis.- A. Transport is faster in cold due to viscosity.
- B. Dye movement is unaffected by temperature.
- C. Low temperature slows down active transport in plants.
- D. Cold enhances capillary action.
Explanation: The correct answer is that low temperature slows down active transport in plants, as evidenced by the dye reaching leaves faster in the…
Correct answer: Low temperature slows down active transport in plants.- A. Fish B is more resistant to pH stress.
- B. CO₂ has no effect on aquatic animals.
- C. Gill movement is unrelated to gas exchange.
- D. Fish A has better acid-base regulatory mechanisms.
Explanation: The correct answer is that Fish A has better acid-base regulatory mechanisms.
Correct answer: Fish A has better acid-base regulatory mechanisms.- A. Vitamin D is made regardless of light.
- B. Sunlight is necessary for vitamin D production.
- C. Darkness accelerates vitamin D synthesis.
- D. Mice naturally lack vitamin D metabolism.
Explanation: The correct conclusion is that sunlight is necessary for vitamin D production, as evidenced by the experiment results where only the…
Correct answer: Sunlight is necessary for vitamin D production.- A. Waxy leaves improve photosynthesis.
- B. CO₂ enters only through stem bark.
- C. Stomata are essential for gaseous exchange in leaves.
- D. Plants don't need CO₂ for photosynthesis.
Explanation: The correct answer is that stomata are essential for gaseous exchange in leaves.
Correct answer: Stomata are essential for gaseous exchange in leaves.- A. The brain is inactive during sleep.
- B. Sound cannot penetrate sleep states.
- C. Only light affects brain waves.
- D. Auditory stimuli can affect brain activity even during unconsciousness.
Explanation: The correct answer is option D. The experiment clearly demonstrated that sudden loud sounds caused a sharp spike in brain wave activity…
Correct answer: Auditory stimuli can affect brain activity even during unconsciousness.- A. Excess nitrogen promotes leaf growth at the expense of fruiting.
- B. Nitrates improve all aspects of plant growth.
- C. Fruit size is unrelated to soil nutrients.
- D. Nitrate-deficient plants always die.
Explanation: The correct answer is Option A: Excess nitrogen promotes leaf growth at the expense of fruiting.
Correct answer: Excess nitrogen promotes leaf growth at the expense of fruiting.- A. All bacteria are killed regardless of resistance.
- B. Antibiotics enhance bacterial reproduction.
- C. Genetic resistance provides survival advantage under antibiotic pressure.
- D. Resistance has no evolutionary importance.
Explanation: The correct answer is Option C: Genetic resistance provides survival advantage under antibiotic pressure.
Correct answer: Genetic resistance provides survival advantage under antibiotic pressure.- A. Metallic surfaces can block radiation from reaching plant tissues.
- B. All plant tissues reflect radiation.
- C. Radiation penetrates aluminum easily.
- D. Plants generate radiation internally.
Explanation: The correct answer is that metallic surfaces, like aluminum foil, can block radiation from reaching plant tissues.
Correct answer: Metallic surfaces can block radiation from reaching plant tissues.- A. External light is necessary for circadian rhythms to function.
- B. Darkness stops circadian rhythms from occurring.
- C. Circadian rhythms are internally regulated by biological clocks.
- D. Motion sensors affect circadian rhythm patterns in rats.
Explanation: The correct answer is that circadian rhythms are internally regulated by biological clocks.
Correct answer: Circadian rhythms are internally regulated by biological clocks.- A. Candles increase oxygen by heating the air.
- B. Plants release CO₂ in light only.
- C. Burning wax generates oxygen.
- D. Combustion uses oxygen and produces carbon dioxide.
Explanation: In the experiment, the jar with the lit candle had lower oxygen levels and higher CO₂ levels compared to the plant-only jar.
Correct answer: Combustion uses oxygen and produces carbon dioxide.- A. Embryos develop faster when static.
- B. Rotation distributes nutrients evenly in developing embryos.
- C. Rotation damages embryos.
- D. Egg turning slows gas exchange.
Explanation: The correct answer is that rotation distributes nutrients evenly in developing embryos, as evidenced by the higher hatch rates and…
Correct answer: Rotation distributes nutrients evenly in developing embryos.- A. Adrenaline permanently lowers blood pressure.
- B. Adrenaline causes a temporary increase in blood pressure.
- C. Adrenaline has no cardiovascular effect.
- D. Adrenaline slows down the heart rate.
Explanation: The correct answer is Option B: Adrenaline causes a temporary increase in blood pressure.
Correct answer: Adrenaline causes a temporary increase in blood pressure.- A. Kidneys filter substances from blood into urine.
- B. Dye bypasses kidney filtration.
- C. Urine formation is independent of kidneys.
- D. Damaged kidneys excrete more dye.
Explanation: The correct answer is that kidneys filter substances from blood into urine.
Correct answer: Kidneys filter substances from blood into urine.- A. Wind exposure strengthens stems while inhibiting height growth.
- B. Stem thickness increases due to wind-induced mechanical stress.
- C. Mechanical stress promotes stem strengthening at the expense of height growth.
- D. Wind exposure results in stunted growth and thicker stems.
Explanation: The correct answer is Option C: Mechanical stress promotes stem strengthening at the expense of height growth.
Correct answer: Mechanical stress promotes stem strengthening at the expense of height growth.- A. Offspring developed their own immunity in utero.
- B. Pathogen was inactive.
- C. Maternal vaccination has no protective role.
- D. Antibodies were transferred from mother to offspring.
Explanation: The correct answer is that antibodies were transferred from the mother to the offspring.
Correct answer: Antibodies were transferred from mother to offspring.- A. Bitterness is universally perceived the same.
- B. Taste is unrelated to receptors.
- C. Taste perception can be influenced by genetic variation.
- D. Only environment affects bitterness sensitivity.
Explanation: The correct answer is that taste perception can be influenced by genetic variation.
Correct answer: Taste perception can be influenced by genetic variation.- A. Fish adjust their internal salt concentration over time.
- B. Fish cannot survive salt changes.
- C. Osmosis is not involved in weight loss.
- D. Weight loss is unrelated to water conditions.
Explanation: The correct answer is that fish adjust their internal salt concentration over time.
Correct answer: Fish adjust their internal salt concentration over time.