996 past contests
Topic 5 · Photorespiration: plants taking up oxygen and releasing co2 in the light
Topic 9 · The pectoral girdle is located in the shoulder region of the upper torso
Topic 9 · The two bones forming the pectoral girdle are the clavicle and scapula
Topic 9 · The pectoral girdle (per side) is formed by 2 bones — clavicle and scapula
Topic 31 · Apple, pear and tomato are all classified as simple fruits
Topic 35 · Constant tissue fluid concentration prevents osmotic bursting or shrinking of cells
Topic 5 · Photosynthesis and respiration form a cyclic exchange of glucose, o2, co2 and water
Topic 38 · Cyanobacteria improve crop yields via biological nitrogen fixation
Topic 11 · Adaptive radiation produces many species from one rapidly diversifying lineage
Topic 2 · Gap junctions form direct cytoplasmic channels enabling intercellular communication
Topic 46 · The negative resting membrane potential arises from differential na+/k+ ion distribution
Topic 17 · Producing specific antibodies after exposure to an organism is adaptive immunity
Topic 32 · Scientific (binomial) names avoid the regional ambiguity of common names
Topic 9 · The atlantoaxial joint (between atlas and axis) is a pivot joint
Topic 18 · Globin is the protein part of the hemoglobin molecule
Topic 8 · Epigeal germination features rapid hypocotyl elongation, raising the cotyledons above soil
Topic 46 · Sodium and potassium ions are the key cations of the neuronal action potential
Topic 46 · The node of ranvier is located in the nervous system, along myelinated axons
Topic 23 · Flower petals act as landing platforms for pollinators
Topic 44 · A climax community is the final, stable, self-sustaining stage of ecological succession