उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

Which of these is qualitative data?

1. AThe pulse rate is 72 beats per minute
2. BThe wound is 3 cm long
3. CThe patient weighs 68 kg
4. DThe urine sample is dark yellow

What is a decomposer?

1. AAn organism that makes food from sunlight
2. BAn animal that hunts other animals
3. CAn animal that eats only plants
4. DAn organism that breaks down dead material

What is natural selection?

1. AAnimals choosing which mates they like best, so traits change at random
2. BHumans breeding plants for useful traits
3. COrganisms changing their genes when they need to
4. DIndividuals with helpful traits survive and reproduce more

Which of these is part of the body's innate (non-specific) defence?

1. AAntibodies made after vaccination
2. BThe skin and stomach acid
3. CT cells that recognise one virus
4. DMemory B cells from an earlier infection

White blood cells called macrophages engulf and digest bacteria. Which organelle would you expect them to have in large numbers?

1. ASmooth endoplasmic reticulum
2. BChloroplasts
3. CCentral vacuoles
4. DLysosomes

वैज्ञानिक प्रयोग को दोहराते या अनेक प्रतिदर्शों का उपयोग क्यों करते हैं?

1. Aयह सुनिश्चित करने के लिए कि परिकल्पना सत्य सिद्ध हो जाए
2. Bहर बार स्वतंत्र चर बदलने के लिए
3. Cनियंत्रण समूह की ज़रूरत से बचने के लिए
4. Dपरिणामों पर संयोग का प्रभाव घटाने के लिए

A nurse notices that patients who used a new mouthwash had few mouth infections. No other patients were studied. What is most needed before concluding that the mouthwash works?

1. AA longer explanation in the report
2. BA survey asking patients if they liked it
3. CA comparable group that does not use the mouthwash
4. DA larger bottle of the same mouthwash for each patient

A pesticide that is not broken down is sprayed on crops. Later, hawks at the top of the food chain have much higher levels of it than the insects. Why?

1. AEach predator eats many prey, so the pesticide builds up at each level
2. BHawks eat the crops directly, so they take in the most pesticide of all
3. CHawks make the pesticide in their own bodies
4. DThe pesticide is broken down faster in insects than in plants