| ANIMALS | Studied in zoology and ethology, the approximately 8.7 million species of living organisms in a biological kingdom that includes mammals, amphibians and insects (7) |
| MCAT | Exam that includes a Biol. Sciences section |
| BIOMASS | The total number of living organisms in a given area |
| INSECT | Described in the books of Jean- Henri Fabre, any one of the more than one million species of arthropods whose development was influenced by the evolution of flowering plants (6) |
| WIZARD | Originally worked in zoology and really did become magician |
| PEARLS | Gems of the sea and birthstones of June, such as the approximately 800 depicted in the Armada Portrait of Elizabeth I (6) |
| ANIMAL | Any one of around 8.7 million zoological species, of which 14 per cent have been formally described in a system of taxonomy originally devised by Carl Linnaeus (6) |
| NITROGEN | Vital to life, one of the most abundant of the approximately 60 elements in the human body (8) |
| FISH | Any one of the approximately 34,000 known species of aquatic "pisces", including the banana wrasse, candy basslet, cherry barb, chocolate gourami, lemon sole, pumpkinseed and strawberry dottyback (4) |
| NEKTON | From the Greek for "swimming", the aggregate of natant organisms in a lake or sea, from whales to shrimp (6) |
| BIOSPHERE | The _________ is a relatively thin life-supporting stratum of Earth's surface, composed of living organisms and the abiotic factors from which they derive energy and nutrients (9) |
| BIOMECHANICS | The study of the workings of the movement of living organisms (12) |
| TEHERAN | Capital city in the Middle East (pop 8.7 million), founded in 1786 (7) |
| AMAZON | Home in its canopy to 60-90 per cent of its three million species, the world's largest rainforest (6) |
| INVITRO | (Of a biological process) made to occur outside the living organism in an artificial environment (2,5) |
| EPHEMEROPTERA | Order of short-lived insects comprising the approximately 3000 species of mayfly (13) |
| LORENZ | Konrad. Austrian psychologist and zoologist who was an early leading figure in the field of ethology (6) |
| PHOSPHORUS | This element is an important constituent of bones and teeth. It is essential to the growth of living organisms, and it is an important component in fertilizer. |
| BIOLOGICALCLOCK | A supposed in-built mechanism that regulates the physiological cycles and rhythms of living organisms (10,5) |
| SWISS | Relating to a landlocked country in central Europe, (pop about 8.7 million) (5) |
