उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

What is a model in science?

1. AA simplified representation of a real system
2. BAn exact copy that has no limitations
3. CThe control group of a study
4. DA single measurement from an experiment

What is a zygote?

1. AAn unfertilised egg cell
2. BA haploid cell made by meiosis
3. CA body cell that has just completed its first round of mitosis
4. DThe diploid cell formed when a sperm fertilises an egg

अलग-अलग कोशिकाओं को देखने के लिए कौन-सा उपकरण इस्तेमाल होता है?

1. Aथर्मामीटर
2. Bदूरदर्शी
3. Cध्वनि का स्पेक्ट्रोमीटर
4. Dसूक्ष्मदर्शी

Why can DNA profiling (fingerprinting) identify individual people?

1. AEvery person has a different number of chromosomes in their cells
2. BDNA in blood differs from DNA in skin
3. CEach person's genes code for different amino acids
4. DRepeated non-coding DNA regions vary in length between people

Which process removes carbon dioxide from the atmosphere?

1. ACellular respiration
2. BPhotosynthesis
3. CBurning fossil fuels
4. DDecomposition

Why do red blood cells have a flattened, biconcave disc shape?

1. AIt lets them hold a larger nucleus and more DNA
2. BIt gives a large surface area for gas exchange
3. CIt makes them stick to vessel walls
4. DIt helps them divide faster

A single-celled organism has a nucleus, no cell wall and swims using cilia. In which group is it best placed?

1. ABacteria
2. BPlants
3. CProtists
4. DFungi

The lion is Panthera leo, the tiger is Panthera tigris and the house cat is Felis catus. Which two are most closely related?

1. AAll three are equally related
2. BThe tiger and the house cat
3. CThe lion and the tiger
4. DThe lion and the house cat