Across
- 2. The early stage of development in multicellular organisms after the zygote, before it becomes a fetus.
- 5. Stem cells that can develop into a limited range of cell types related to a specific tissue or organ (e.g., hematopoietic stem cells in blood).
- 6. A structure formed in the early development of mammals, consisting of a hollow ball of cells that will eventually develop into an embryo.
- 11. Tissue that makes up the brain, spinal cord, and nerves, responsible for transmitting signals and processing information.
- 12. Tissue that supports, binds, and protects other tissues and organs (e.g., bone, blood, adipose tissue).
- 13. The fertilized egg formed by the union of a sperm and an egg.
- 14. The maintenance of a stable internal environment in an organism despite external changes.
- 16. Tissue that covers surfaces and lines cavities, providing protection and facilitating absorption and secretion.
- 17. Stem cells that can develop into almost any cell type but cannot form an entire organism (e.g., embryonic stem cells).
Down
- 1. A structure made up of different types of tissues that work together to perform a particular function (e.g., heart, liver).
- 3. A group of organs that work together to carry out complex functions in an organism (e.g., digestive system).
- 4. Tissue responsible for movement in the body, consisting of cells that can contract (e.g., skeletal, cardiac, smooth muscle).
- 7. Undifferentiated cells that have the potential to develop into various cell types in the body.
- 8. The process by which unspecialized cells become specialized into specific cell types with distinct functions.
- 9. A reproductive cell (sperm or egg) that carries genetic information for reproduction.
- 10. Stem cells that can develop into any cell type, including both embryonic and extraembryonic tissues (e.g., placenta).
- 15. A group of similar cells that work together to perform a specific function.