Algae

4. any member of a large group comprising several genera of algae,specifically microalgae found in oceans, waterways and soils of the world
6. absolutely necessary
8. a system of names or terms or the rules for forming these terms in a particular field of science
10. a principle or belief, esspecially one of the main principles or beliefs of a religion or philosophy
11. task very difficult task to do
15. debates debates causing a lot of disagreements or arguments
16. a natural liking or understanding of something or someone

1. analysis measurements of quantities of particular constituents, measures quantitative data
2. single- celled algae with glass cell walls, prolific sea organisms
3. a person who can communicate technical or scientific ideas to a general public
5. comprehensive collection of information and analysis relevant to a body of knowledge
7. binomials the contribution Linnaes made to taxonomy
9. organisms whose cells have a nucleus, a major group of living things
12. sampling the process of selecting representative taxa for a phylogenetic analysis
13. an inclination or natural tendency to behave in a particular way
14. the study of words and their parts