Classifying Life's Diversity

1. The array of different forms and structures within living organisms, including internal cellular arrangements and morphology.
2. The system of assigning a two-part Latin name to each species.
5. A method of organizing organisms into categories ranging from broad to specific.
6. Species at risk of becoming extinct due to declining populations.
10. The biological discipline focused on identifying, naming, and categorizing species based on their inherent features.
12. Organisms essential for breaking down deceased organic material and recycling nutrients within ecosystems.
13. A group or category used in biological classification, such as a family, genus, or species.
15. An organism capable of producing its own food through processes like photosynthesis.
17. The variety of distinct species present in a given area or ecosystem.
18. A rank in the classification of living organisms, grouping closely related species that share a common ancestor.
19. An organism that obtains energy by consuming other plants or organisms, unable to produce its own food.
24. The branch of biology that examines the chemical and physical functions of organisms, encompassing internal processes.
25. A basic type of cell lacking a membrane-bound nucleus, often considered the earliest form of cell.
27. The state in which a species no longer exists.

1. A collective of organisms capable of natural interbreeding, resulting in fertile offspring.
3. Evolutionary changes that enhance an organism's survival in its particular environment.
4. The variability of genes within a population.
7. A tool for identification that employs a series of binary choices to lead to a correct identification.
8. A group of animals characterized by live birth and typically possessing hair or fur.
9. The complete set of genes present in a population's individuals.
11. A group of individuals of the same species residing in a specific area at a given time.
14. Organisms from which other groups of living beings are descended.
16. A branching diagram illustrating the evolutionary relationships among various species.
20. A complex type of cell with a membrane-bound nucleus.
21. The evolutionary lineage and history of a particular species.
22. Animals lacking a vertebral column or backbone, including insects, spiders, and snails.
23. The field of biology concerned with the structure or physical form of an organism.
26. The scientific study of living organisms.