Across
- 4. To disappear or to cause to disappear
- 6. The set of interconnected chemical reactions that harness and dissipate energy, and that create the molecules an organism needs to sustain itself, including the building blocks for DNA, RNA, proteins, cell membranes, and carbohydrates
- 9. A compound consisting of nucleoside linked to a phosphate group
- 11. The branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
- 14. Substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction
- 15. Chemistry that took place on earth before life existed
- 17. Make an exact copy of; reproduce.
- 19. Affecting all the people or things in the world
- 21. Chemically similar to DNA, except uses four slightly different nucleotide bases
Down
- 1. An expert in or student of physics
- 2. A period of a thousand years
- 3. An expert in or student in the science concerning living organisms
- 5. An expert in or student in the study of rocks
- 7. A strange or diverse collection of people or things
- 8. A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
- 10. Bumpy, scaley looking rocks that form when single celled organisms secrete
- 12. A proposed explanation made on the basis of limited evidence as a starting point for further investigation
- 13. God of the Greek underworld
- 16. An expert in or student in the field of astronomy the study of spaces
- 18. Code the instruction manual for building a living organism
- 20. A member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease