Across
- 4. These are ovoid cells in the CNS that can transform into a phagocytic macrophage to clean neuronal debris and wastes.
- 13. includes all the communities interacting with one another and with their environment
- 14. tissue characterized by the presence of ground substances and fibers that support, bind, and protect organs.
- 15. a junction between two nerve cells, consisting of a minute gap across which impulses pass by diffusion of a neurotransmitter.
- 17. a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.
- 18. includes all the different kinds of ecosystem
- 19. cambium that gives rise to secondary xylem and phloem.
- 20. also reflects excess light.
- 21. the long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.
Down
- 1. located at the root tips (right) are responsible for the primary growth of plants.
- 2. the basic unit of the nervous system, consists of structures that can conduct electrochemical signals as a form of information.
- 3. formed by different organ systems that create complex interactions with one another to maintain balance or homeostasis, and sustain life
- 5. These are star-shaped cells that support and control the chemical environment around the neurons.
- 6. are epidermal outgrowths responsible for protecting the plants from water loss.
- 7. are composed of nondividing cells.
- 8. groups of cells that work together to perform a specialized function
- 9. are found in the growing areas of plants.
- 10. distinct and specialized subcellular structures that contribute to the cell’s maintenance and reproduction; membrane-bound structures in eukaryotic cells
- 11. organisms that belong to the same species and live in the same area
- 12. tissue that contain networks of nerve cells that possess irritability and conductivity to allow the transmission and reception of electrochemical impulses.
- 16. type of animal tissue that forms the inner and outer lining of organs, the covering in surfaces, and the primary glandular tissue of the body.