996 past contests
Topic 3 · The four layers of the human digestive tract wall: submucosa
Topic 3 · The four layers of the human digestive tract wall: serosa
Topic 22 · Riddle: the mesentery, a mesoderm-derived organ supporting and protecting the intestine
Topic 10 · True or false: information directing a cell's activities is contained in protein molecules
Topic 2 · True or false: cells that seldom divide spend most of their time in interphase
Topic 52 · True or false: after dna replication there are twice as many centromeres as chromatids
Topic 45 · True or false: both shoots and roots show negative gravitropism
Topic 45 · True or false: shoots show positive gravitropism and roots negative gravitropism
Topic 45 · True or false: both shoots and roots show positive gravitropism
Topic 5 · True or false: protoplasmic respiration occurs in the protoplasm (mitochondria)
Topic 5 · True or false: protoplasmic respiration occurs only during carbohydrate/fat scarcity (starvation)
Topic 5 · True or false: protoplasmic respiration alone keeps the cell healthy
Topic 47 · Riddle: the lateral line, a fish sensory system detecting water movement via hair cells
Topic 35 · Osmotic pressure is the pressure built up within a cell from water absorbed by osmosis
Topic 51 · Meiosis is the cell division involved in gamete formation
Topic 26 · Budding: producing small outgrowths capable of forming an independent plant
Topic 18 · Pepsinogen is the most abundant digestive enzyme secreted by gastric chief cells
Topic 18 · Collagen is the most abundant protein in the animal kingdom
Topic 18 · Connective tissue is the most abundant tissue in higher animals
Topic 17 · Riddle: pasteurization, named after louis pasteur's 1860s wine-spoilage research