Halloween Crossword

2. a framework of bone or cartilage enclosing the brain of a vertebrate; the skeleton of a person's or animal's head.
7. a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.
8. an organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity.
10. a disorder of structure or function in a human, animal, or plant, especially one that has a known cause and a distinctive group of symptoms, signs, or anatomical changes.
11. an internal or external framework of bone, cartilage, or other rigid material supporting or containing the body of an animal or plant.
12. the death of most or all of the cells in an organ or tissue due to disease, injury, or failure of the blood supply.
13. the red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body.

1. any of a group of spore-producing organisms feeding on organic matter, including molds, yeast, mushrooms, and toadstools.
3. an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
4. a dead body, especially of a human being rather than an animal.
5. an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.
6. any of the pieces of hard whitish tissue making up the skeleton in humans and other vertebrates.
9. the invasion and growth of germs in the body.