describe the levels of organisation within organisms: organelles, cells, tissues, organs and systems.
Organelles-Any of a number of organized or specialized structures within a living cell-eg mitochondria
cell-The smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane
Tissue-A group of similar cells that perform a common function-eg muscles
organ-A collection of tissues that carry out a specialized function of the body-liver
organ system-An individual animal, plants or single-celled life form
1. Integumentary system: Your skin, hair, and nails protect the tissue that lies beneath…