Across
- 1. any disease-producing agent
- 4. plant tissue that conducts synthesized food substances
- 9. the process by which a cell divides into two smaller identical cells
- 10. a network of filaments and microtubules in the cytoplasm
- 11. system the organs and tissues involved in circulating blood and lymph through the body
- 13. fine spores produced by flowers to fertilize other flowers
- 15. sequence of three adjacent nucleotides on a strand of mRNA that specifies a particular amino acid
- 16. organelle in which photosynthesis takes place
- 18. a condensed region of chromosomes that appears during mitosis where the chromatids are held together to form an X shape
- 20. plant a plant with leaves that shed in the fall
Down
- 2. absorbing heat
- 3. metabolic equilibrium maintained by biological mechanisms
- 5. the ancestry or lineage of an individual
- 6. the number and arrangement of the chromosoms of a somatic cell
- 7. system the sensory and control systems that uses a network of nerve cells
- 8. transfer of the fine spores that contain male gametes
- 12. reproduction reproduction without the fusion of gametes
- 14. the outer layer of skin
- 17. taxonomic group whose members can interbreed
- 19. the study of heredity and variation in organisms