biology

1. Respiration: The process by which cells break down glucose and other organic molecules to produce energy in the form of ATP.
3. The study of the interactions between organisms and their environment.
5. The process of cell division that reduces the chromosome number by half, leading to the formation of gametes (sperm and egg cells).
8. Chemical messengers produced by glands that regulate various physiological processes in the body.
10. The variety of life forms and species in a particular habitat, ecosystem, or the entire planet.
12. A group of individuals that can interbreed and produce fertile offspring in nature, sharing common characteristics.
14. The process of cell division that results in the production of two identical daughter cells, used for growth and repair.
15. The science of classifying and naming living organisms based on their shared characteristics and evolutionary relationships.
16. A trait or characteristic that enhances an organism's survival and reproduction in a specific environment.
17. The process by which species change over time through the accumulation of genetic variations and adaptations.
18. A permanent change in the DNA sequence of an organism, which can lead to genetic diversity.

1. The process of creating genetically identical organisms or cells through asexual reproduction.
2. The complete set of an organism's genetic material, including all of its genes.
4. Variation: Differences in the genetic makeup of individuals within a population, which is crucial for evolution and adaptation.
6. A community of living organisms (biotic) interacting with their physical (abiotic) environment.
7. The process by which green plants and some other organisms convert sunlight into chemical energy in the form of glucose, releasing oxygen as a byproduct.
9. The basic structural and functional unit of all living organisms.
11. The ability of an organism to resist or defend against infections and diseases.
13. A molecule that carries genetic information and is responsible for the inheritance of traits in living organisms.
17. A biological catalyst that speeds up chemical reactions in living organisms.