Biology

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Across
  1. 3. - The ability to maintain ecological balance by using resources in a way that does not deplete them.
  2. 4. - The natural environment in which a species or community of organisms lives and thrives.
  3. 7. - The green pigment found in plants that captures light energy for photosynthesis.
  4. 11. - A macromolecule made of amino acids that performs various functions in the body, including structure and catalysis.
  5. 14. - A specialized cell that transmits nerve impulses in the nervous system.
  6. 17. - A close and long-term interaction between two different biological species, which can be beneficial or harmful.
  7. 19. - The biochemical process in which cells convert glucose and oxygen into energy, carbon dioxide, and water.
  8. 22. - The process by which green plants convert sunlight, water, and carbon dioxide into glucose and oxygen.
  9. 23. - A segment of DNA that codes for a specific protein or function, determining hereditary traits.
  10. 24. - A type of cell division that produces gametes (sperm and eggs) with half the number of chromosomes.
  11. 25. - The basic structural and functional unit of all living organisms.
  12. 26. - A group of cells that work together to perform a specific function in an organism.
  13. 30. - The process by which living organisms maintain stable internal conditions despite changes in their external environment.
Down
  1. 1. - A microscopic organism, such as bacteria, viruses, fungi, and protozoa.
  2. 2. - Relating to the chemical processes and substances that occur within living organisms.
  3. 5. - Pertaining to the cell, including its structure, function, and processes.
  4. 6. - A structure composed of different tissues that perform a specific function within an organism.
  5. 8. - The variety of life in a particular habitat or ecosystem, including the number of species and genetic variability.
  6. 9. Selection - The mechanism by which individuals with advantageous traits are more likely to survive and reproduce.
  7. 10. - A process of cell division that results in two identical daughter cells, crucial for growth and repair.
  8. 12. - A structure composed of DNA and protein that carries genetic information; humans have 46 chromosomes.
  9. 13. - A protein that acts as a catalyst to accelerate biochemical reactions in the body.
  10. 15. - A community of living organisms interacting with their physical environment, including both biotic and abiotic components.
  11. 16. - The preserved remains or impressions of ancient organisms, providing evidence of past life on Earth.
  12. 18. - Deoxyribonucleic acid, the molecule that carries genetic information in living organisms.
  13. 20. - A group of organisms that can interbreed and produce fertile offspring, sharing common characteristics.
  14. 21. System - The body's defense system against infections and diseases, involving cells, tissues, and organs.
  15. 27. - The process through which populations of organisms change over generations, leading to the emergence of new species.
  16. 28. - A protein produced by the immune system to identify and neutralize foreign objects like bacteria and viruses.
  17. 29. - A substance that stimulates the immune system to recognize and combat specific pathogens without causing disease.