| PROTEIN | Biochemical compound; an essential constituent of all living organisms (7) |
| RNA | Constituent of all living cells |
| CALCIUM | Silvery-white metallic element, an essential constituent of bones and teeth (7) |
| PROTEINS | Long chain of amino acids, an essential part of all living organisms (8) |
| LIPID | Oily, organic compound, an important component of living cells (5) |
| CELL | Basic structural and functional unit of all living organisms, consisting of cytoplasm and a nucleus enclosed by a membrane (4) |
| HISTAMINE | I name this compound an irritant (9) |
| INBUILT | Existing as an essential constituent (7) |
| EMPEROR | Tallest and heaviest of all living penguin species (7) |
| NEUTRON | Name an elementary particle which is a constituent of all atomic nuclei, except hydrogen (7) |
| ADENINE | Biochemical compound in commercial drug given to a number |
| PEPTIDE | Energy rising and falling? Biochemical compound needed |
| ORPHEUS | Lyre player who could charm all living things |
| JAINISM | Faith that preaches nonviolence to all living creatures |
| IRON | Press clothes / silver-white ductile metallic element occurring in nature used for tools and implements; also an essential element in all living organisms |
| EXTINCTION | The wiping out of all living members of an animal or plant species (10) |
| NUCLEICACID | Complex compound found in the cells of all living things (7,4) |
| SQUID | The diameters of the eyes of colossal and giant ___ can measure over 25 cm (10 inches) and are among the largest of all living animals (5) |
| AHIMSA | Doctrine of non-violence, expressing belief in the sacredness of all living creatures (6) |
| ACETIC | The essential constituent of vinegar, ... acid (6) |
