Solve these clues to fill the grid.
- Strands that grow on your head
- 3 Across
- The simplest structural unit of an element or compound
- 5 Across
- Red liquid pumped around the body by the heart
- 6 Across
- A fourth state of matter distinct from solid or liquid or gas and present in stars and fusion
- 7 Across
- Any substance that stimulates an immune response in the body
- 8 Across
- A discoloration caused by ___ (plural)
- 11 Across
- Any of several elongated, threadlike cells
- 13 Across
- A segment of DNA that is involved in producing a polypeptide chain
- 14 Across
- The outer layer of the skin covering the exterior body surface of vertebrates
- 1 Down
- Lower or hindmost part of the brain
- 2 Down
- Any small spherical group of cells containing a cavity
- 4 Down
- Bottom part something stands on; a safe spot in baseball
- 6 Down
- Any of a large variety of proteins normally present in the body or produced in response to
- 8 Down
- Someone regarded as certain to succeed
- 9 Down
- The tissue forming the outer layer of an organ or structure in plant or animal
- 10 Down
- The branch of medical science that deals with serums
- 12 Down