Biology Crossword

1. A structure consisting of several tissues adapted as a group to perform specific functions.
3. The domain that includes all eukaryotic organisms.
4. One of the two prokaryotic domains of life.
5. A taxonomic category above the kingdom level. The three domains of life are Archaea, Bacteria, and Eukarya.
7. An approach to studying biology that aims to model the dynamic behavior of whole biological systems.
8. The scientific study of life.
9. One of the two prokaryotic domains of life.
10. A group of two or more atoms held together by covalent bonds
14. type of cell lacking a membrane-enclosed nucleus and other membrane enclosed organelles; only found in the domains of Bacteria and Archaea.
16. A membrane-enclosed structure with a specialized function within a cell

1. A group of organs that work together in performing vital body functions.
2. type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles. All organisms except Bacteria and Archaea are composed of these cells.
6. A process in which organisms with certain inherited characteristics are more likely to survive and reproduce than are organisms with other characteristics.
11. An integrated group of cells with a common function, structure or both.
12. Descent with modification; the idea that living species are descendants of ancestral species that were different from present day ones; also the genetic changes in a population over generations
13. An individual living thing, such as a bacterium, fungus, protist, plant, or animal.
15. A basic unit of living matter separated from its environment by a plasma membrane; the fundamental structural unit of life.