Across
- 4. a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
- 5. a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
- 7. the weather conditions prevailing in an area in general or over a long period.
- 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
- 12. the surroundings or conditions in which a person, animal, or plant lives or operates.
- 14. the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
- 15. The biological specialty of classifying species and their relationships to each other.
Down
- 1. the state or fact of continuing to live or exist, typically in spite of an accident, ordeal, or difficult circumstances.
- 2. the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.
- 3. the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
- 6. the natural home or environment of an animal, plant, or other organism.
- 8. a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
- 9. the variety of life in the world or in a particular habitat or ecosystem.
- 10. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
- 13. a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.