996 past contests
Topic 4 · Correct sequence of events during inhalation
Topic 36 · Oxygen delivery to muscle via red blood cells and the circulatory system
Topic 36 · Sequence of cardiac valve events during heart contraction
Topic 20 · Identifying squamous epithelial cells from their thinness and permeability
Topic 20 · Identifying cuboidal epithelial cells from their shape and function
Topic 20 · Identifying ciliated epithelial cells from their hair-like projections
Topic 14 · The root's proliferous layer breaks down as the root ages (true/false)
Topic 46 · Riddle: the spinal cord, from the embryonic neural tube
Topic 7 · The root epidermis (proliferous layer) has a thin cuticle, not a thick one (true/false)
Topic 7 · The root epidermis (proliferous layer) bears root hairs (true/false)
Topic 22 · The pancreas has both digestive and endocrine roles, not digestion alone (true/false)
Topic 22 · The pancreas combines digestive, hormonal and blood-glucose-regulating roles (true/false)
Topic 27 · Problem of the day: demonstrating culturable microorganisms in exhaled breath
Topic 52 · Mutation and recombination as the two main causes of heritable variation
Topic 39 · Sewage and intensive agriculture as major sources of excess nitrate/phosphate in waterways
Topic 51 · Each chromosome replicates into two sister chromatids before mitosis
Topic 18 · Classifying collagen's protein function as structure
Topic 18 · Classifying hemoglobin's protein function as transport
Topic 18 · Classifying myoglobin's protein function as storage
Topic 18 · Fehling's test identifying a reducing sugar