996 past contests
Topic 7 · The lamina as the broad flat part of a leaf
Topic 31 · Biennial plants completing their life cycle over two growing seasons
Topic 53 · Alleles as alternative molecular forms of the same gene
Topic 53 · Homozygous dominant genotype definition
Topic 53 · Phenotype as an organism's observable traits
Topic 31 · Perennial plants with continued vegetative growth over many years
Topic 31 · Annual plants completing their life cycle in one growing season
Topic 6 · The queen and drones as reproductive castes in a honeybee colony
Topic 21 · Malpighian tubules as the excretory structure of insects
Topic 13 · Trail pheromones used by ants for colony navigation
Topic 27 · Riddle: euglena as a flagellated mixotrophic protist
Topic 33 · Urea as a breakdown product of proteins, excreted in urine (true/false)
Topic 7 · Trichomes as epidermal outgrowths (true/false)
Topic 7 · Guard cells occurring in pairs (true/false)
Topic 7 · Root hairs as extensions of single epidermal cells (true/false)
Topic 27 · Intracellular digestion in single-celled organisms (true/false)
Topic 3 · Relative gut length of carnivores versus herbivores (true/false)
Topic 14 · Site of separation of urogenital and faecal products in mammals (true/false)
Topic 8 · Differentiation of function as the key advantage of multicellularity
Topic 5 · Ethanol as the end product of yeast fermentation