Across
- 3. Connects the bladder to the exterior of the body
- 4. Filter blood and make urine
- 7. Measure length
- 8. Number of nucleic acids that make a codon
- 10. Measure mass
- 11. Carry urine from the kidneys to the bladder
- 13. Number of nucleotide bases in DNA
Down
- 1. This organ stores urine
- 2. These cylinders measure volume of liquids
- 5. Protect scales
- 6. Irregular bones
- 9. Produces globulin that can aid the immune system
- 12. Holds T-cells until they mature