Solve these clues to fill the grid.
- The fine spores that contain male gametes and that are borne by an anther in a flowering plant
- 3 Across
- Hypersensitivity reaction to a particular ___ (plural)
- 5 Across
- A ___ that protects the body from foreign substances and pathogenic organisms by producing
- 8 Across
- To obtain from someone after their death
- 9 Across
- Substance used in or made by chemistry (plural)
- 1 Down
- Pertaining to ___
- 2 Down
- Any substance that can cause an ___ (plural)
- 4 Down
- Respiratory disorder characterized by wheezing
- 6 Down
- Any of a large variety of proteins normally present in the body or produced in response to (plural)
- 7 Down
