Across
- 2. is the process of eliminating or expelling waste matter.
- 4. having or consisting of many cells.
- 5. is the first stage of cell division, before metaphase, during which the chromosomes become visible as paired chromatids and the nuclear envelope disappears. The first prophase of meiosis includes the reduction division.
- 8. group of organs that work together to perform a certain function in an organism
- 9. is the process of taking food, drink, or another substance into the body by swallowing or absorbing it.
- 10. an individual animal, plant, or single-celled life form.
- 13. is the final phase of cell division, between anaphase and interphase, in which the chromatids or chromosomes move to opposite ends of the cell, and two nuclei are formed.
- 15. a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.
- 17. consists of a single cell.
- 20. is a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.
- 21. a substance that is formed as the result of a chemical reaction.
- 22. is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.
- 23. is the second stage of cell division, between prophase and anaphase, during which the chromosomes become attached to the spindle fibers.
- 24. is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
- 25. is the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
Down
- 1. the action of breathing.
- 3. a substance that takes part in and undergoes change during a reaction.
- 6. is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
- 7. the spreading of something more widely.
- 11. is the process of breaking down food by mechanical and enzymatic action in the alimentary canal into substances that can be used by the body.
- 12. is the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
- 14. the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
- 16. are any of the distinct types of material from which animals or plants are made, consisting of specialized cells and their products.
- 18. is the stage of meiotic or mitotic cell division in which the chromosomes move away from one another to opposite poles of the spindle.
- 19. the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.