free flashcards

27 free flashcards that walk blood through the heart in order: every chamber, valve and vessel, and where the blood is oxygen-rich or oxygen-poor.

74 free flashcards on the bones of the human body: all 22 skull bones, the spine, ribs, arms, hands, hips, legs and feet, checked against OpenStax.

68 free flashcards for the 12 cranial nerves: number to name and back, sensory, motor or both, and what each one does, checked against OpenStax A&P.

106 free flashcards for the 20 amino acids: one- and three-letter codes both ways, side-chain classes and the nine essential ones, checked against IUPAC.

71 free flashcards for AP Biology Unit 7, all 12 topics: selection, drift, Hardy-Weinberg with worked problems, phylogeny, speciation and the origin of life.

76 free flashcards for the first 36 elements, hydrogen to krypton: symbol to name and name to symbol, each with its atomic number, checked against PubChem.

65 free flashcards for the 25 common polyatomic ions: name to formula and charge, and formula to name, checked against OpenStax Chemistry 2e.

56 free flashcards for the unit circle: the 16 standard angles in degrees and radians, the sine and cosine of each, and the signs in each quadrant.

45 free flashcards for AP Psychology Unit 2, Cognition, in the current course: perception, thinking, memory and intelligence, most with an example.

45 free flashcards for APUSH Period 3, 1754 to 1800: the key terms, acts, events and people, and why each mattered, checked against the course description.