Biology Crossword

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Across
  1. 1. An aggregate of cells in an organism that have similar structure and function.
  2. 4. Membrane-bound structures that occur as functional independent units of life (such as in unicellular organisms, e.g. bacteria, protozoa, etc.), or as structural or fundamental units in a biological tissue specialized to perform a particular function in multicellular organisms (e.g. plants and animals).
  3. 7. A group of tissues that perform a specific function or group of functions.
  4. 8. (anatomy) The external membranous integument of the body; the outer protective covering of (the body of) an organism.
Down
  1. 2. The fluid or moisture secreted from the sweat glands to the surface of the skin (through skin pores) during perspiration
  2. 3. The frame supporting a human or animal body
  3. 5. The lungs are a pair of breathing organs located with the chest which remove carbon dioxide from and bring oxygen to the blood. There is a right and left lung.
  4. 6. (Science: anatomy) The hard, calcified tissue of the skeleton of vertebrate animals, consisting very largely of calcic carbonate, calcic phosphate, and gelatine; as, blood and bone.