Across
- 6. Blood to heart
- 7. attack Damage of coronary arteries
- 9. molecules that have the same molecular formula but different structures
- 10. bond Bond formed when one or more electrons are transferred from one atom to another
- 12. Atom that has a positive or negative charge
- 13. Negatively charged particle; located outside the atomic nucleus
- 14. the fact or quality of being diverse; difference
- 15. a chemical subunit that serves as a building block of a polymer
- 17. the differences within a species
- 20. a chain of amino acids linked by peptide bonds
- 21. helix the form assumed by DNA in living cells, referring to its two adjacent polynucleotide strands wound into a spiral shape
- 24. Damage of arteries in brains
- 25. Substance consisting entirely of one type of atom
Down
- 1. the condition of the constant state of being of organism on earth
- 2. ability of an organism to survive and reproduce in its environment
- 3. Substance formed by the chemical combination of two or more elements in definite proportions
- 4. Smallest unit of most compounds
- 5. Basic unit of matter
- 8. the study of embryos
- 9. Tissue swelling
- 11. disappearance of a species from all parts of its geographical range
- 16. organism in its early stage of development
- 18. steroids synthetic variants of testosterone
- 19. formation of new species
- 22. Cells Multi-potent cells that can replenish blood cell populations
- 23. pool is the set of all genes, or genetic information, in any population, usually of a particular species.