Revision

7. The rate or state of death within a population.
8. The study of microscopic changes in tissues caused by disease.
10. A chemical reaction in which a substance reacts with oxygen to produce heat and light.
12. A metallic element (Fe) essential for producing hemoglobin in red blood cells.
13. Describes two substances, typically liquids, that do not mix or form a homogeneous mixture.
14. A measure of disorder or randomness in a system, often associated with energy dispersal.
16. A mixture of two or more metals or a metal and another element, designed to enhance properties.

1. A type of reaction or process that absorbs energy, typically in the form of heat.
2. The formation of a blood clot within a blood vessel, blocking blood flow.
3. A positively charged ion formed when an atom loses electrons.
4. To multiply or increase rapidly in number, often used in biological contexts.
5. Refers to processes or organisms that occur or live without oxygen.
6. A small tool used to transfer or dispense small amounts of liquid precisely.
9. A negatively charged ion formed when an atom gains electrons.
11. A chemical process in which an atom, molecule, or ion loses electrons.
15. Relating to the recurring trends and properties of elements in the periodic table.
16. The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons.