Practice check: Which option correctly completes the fact: which blood type is commonly called the universal red-cell donor in emergency contexts?

✅ D. Mycology

a: Ornithology | b: Entomology | c: Ecology | d: Mycology Read more

✅ B. CO2

Option A: O2 Option B: CO2 Option C: H2O Option D: light energy Correct Answer : CO2 Read more

✅ C. Oxygen

a: Carbon monoxide | b: Methane | c: Oxygen | d: Ammonia Read more

✅ A. Producers

a: Producers | b: Decomposers only | c: Primary consumers | d: Predators Read more

✅ C. Skin

a: Lung | b: Liver | c: Skin | d: Brain Read more

✅ D. ATP

Option A: Polysaccharide Option B: Protein Option C: Hemoglobin Option D: ATP Correct Answer : ATP Read more

✅ C. Phagocytosis

Option A: Diffusion Option B: Osmosis Option C: Phagocytosis Option D: Plasmolysis Correct Answer : Phagocytosis Read more

✅ C. R group

Option A: NH2 group Option B: COOH group Option C: R group Option D: All of these Correct Answer : R group Read more