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- Q: Which highly contagious infection causes a soft grey membrane to form across the throat?
A: Diphtheria. The hallmark sign is a thick, fuzzy, greyish-white layer (called a pseudomembrane) made of dead tissue, bacteria, and fibrin. It firmly coats the tonsils, pharynx, and nasal passages. - Q: Which is the only female deer to have antlers?
A: Reindeer (also known as the caribou in North America). - Q: What is the anatomical name for the shoulder blade?
A: scapula (plural: scapulae). It is a flat, triangular bone located on the upper back that connects the upper arm bone to the collarbone. - Q: What is a hemodialyzer?
A: artificial kidney. It uses a man-made, semi-permeable membrane to clean waste, extra fluid, and chemicals from the blood. - Q: Geologically, what is the lithosphere?
A: The Earth’s crust. Unlike the hot, flowing asthenosphere below it, the lithosphere responds to stress by breaking or flexing elastically, causing earthquakes. - Q: Anatomically speaking, what is a hallux?
A: Big toe or great toe. Unlike other toes that have three bones, the hallux has only two phalanges: the proximal phalanx and the distal phalanx. - Q: Which colourless, corrosive liquid has the formula HNO3?
A: Nitric acid. Colourless when pure, though old samples often turn yellow or brown because light breaks it down into nitrogen dioxide. - Q: Consumption is the former name of which bacterial lung infection?
A: Tuberculosis (TB). Doctors and patients called it consumption because severe weight loss made the body look like it was wasting away or being “consumed” from the inside. - Q: What scale has talc at number 1 and diamond at number 10?
A: The Mohs scale of mineral hardness. It goes from 1 (the softest) to 10 (the hardest). 1: Talc (can be scratched easily by a fingernail), 2: Gypsum (can be scratched by a fingernail), 3: Calcite (can be scratched by a copper coin), 4: Fluorite (can be scratched by a steel knife), 5: Apatite (can be scratched by a steel knife), 6: Orthoclase Feldspar (can be scratched by a steel file or glass), 7: Quartz (can scratch glass and steel easily), 8: Topaz, 9: Corundum (like ruby and sapphire), 10: Diamond (the hardest natural substance on Earth) - Q: Dionaea Muscipula is the scientific name for which carnivorous plant?
A: Venus flytrap. It catches its prey—chiefly insects and arachnids—using a trapping structure formed by the terminal portion of each of its leaves.